What's New

If you visit the site regular, this page can help you to find the latest new items. Please come back often. I'm always looking for new semiconductor items to complete my collection, so if you would like to sell or exchange something, please contact me, jan@transparentsound.com.


Latest news (January 15th 2015)
New interesting link from Simon Hemour regarding Harvesting HF energy, see website: http://ieeexplore.ieee.org/stamp/stamp.jsp?reload=true&arnumber=6922611


Latest news (July 17th 2014)
New interesting link from Joe Da Silva (US), etler.com/docs/WECo/WECo%20Solid%20State%20Devices.pdf


Latest news (April 6th 2014)
Historic diode information (1N21. 1N22, 1N23 etc. from Simon Hemour from the US, see Sylvania webpage on this site.


Latest news (August 24th 2013)
Brimar commercial Leaflets of the TP1, TP2, TJ1, TJ2 and TJ3 donated by Stef Niewiadomski from the UK.


Latest news (August 23rd 2013)
Brimar datasheets TS1, TS2, TS3, TP1, TP2, TJ1, TJ2 and TJ3 donated by Stef Niewiadomski from the UK.


Latest news (May 10th 2013)
New photo's Honeywell 2N8, 2N75, 2N757A, 2N1501, H1, H4, H5, H6, H10, H45, H71, H201, Unidentified devices, Waver materials
New photo's Sylvania GT422
New photo's Western Electric 2N26, 1764
New photo's Texas Instruments 201, 300, 950-1, J11, TN59, Experimental Devices
New photo's Philips OC53-55-55A-58
New photo's RCA TA153, TA165K

New book, Broken Genius by Joel N. Shurkin
New book, Crystal Fire by Michael Riordan & Lillian Hoddeson
New book, TI, the Transistor and Me by Ed Millis


Latest news (April 12th 2013)
New Page Honeywell implemented, mean for major update with a lot of new devices.
Coming soon photos of the RCA TK165K
Coming soon photos of the Western Electric 2N26 transistor and 1764 diode
Coming soon photos of the Sylvania GT-422
Coming soon photos of the Philips devices; OC13, OC53, OC55, OC55A, OC58


Latest news (March 11th 2013)
Update historic information regarding the first Hybrid car radio and first all transistor car radio (1955), see Brand history, Delco transistors. Thanks Rick Hirsh from the US for his grateful contribution of this info.


Latest news (December 31st 2012)
Update specifications from the S35 Silicon Junction Diode from Brush Crystal Company. Thanks to Bertram Schmiedel from Germany for his feedback.


Latest news (March 9th 2012)
Coming soon: Sylvania GT-442, Philips OC13, RCA TA165K, Philips OC53, OC55, OC55A, OC58


Latest news (January 26th 2012)
Updated the technical info for P416, Russia GE transistor
Updated Sale/Wanted page


Latest news (January 2nd 2011)
New, Westinghouse 308F Power diode, mid fifties,
New, Sylvania Transistor Kit, with 2pcs 2N35, 1pcs 1N34 and Booklet,
New, Philips, OA7 Germanium diode,
New, Philips, OC43 Germanium PNP transistor,
New, Philips, OC44 Germanium PNP transistor,
New, Philips, OC70 Germanium PNP transistor,
New, Philips, OC75 Germanium PNP transistor, 
New, Philips, OC140 Germanium PNP transistor,
New, Western Electric, 2N24 PNP Germanium transistor.
New, Western Electric, 2N27 PNP Germanium transistor.
New, Western Electric, 1859 PNP Germanium transistor.
New, Western Electric, 1847 Varistor.


Latest news (October 2nd 2011)
Updated the Logo of Westinghouse transistors in Brand History, coming from a carton package of 308F Power diodes (16pcs)


Latest news (September 24th 2011)
Updated Texas instruments ad. Rocket power Controlled by Transistors, published February 1958 in Fortune.


Latest news (September 5th 2011)
Updated Zaerix and CV--> Communication Valve historic information. Thank to Alan Stepney from the UK.


Latest news (August 22th 2011)
Updated T1 device by  Rick Hirsh, it was a Texas Instruments Silicon Diode from 1956.


Latest news (February 25th 2011)
Updated Brimar M3 Selenium Diode specifications, thank to John Sykes from the UK.


Latest news (February 6th 2011)
New, Raytheon Technical and Application Data from 1955-1957, with a complete reference chart of the early Raytheon Transistors and Diodes.
New, Implementation of original datasheet of the 2N112, CK721 and CK722.


Latest news (January 25th 2011)
New, Philco Transistor reference Chart from the early sixties.


Latest news (January 22th 2011)
New, CBC datasheet for the 1N34 till 1N67 diodes (early fifties)
New, Small Sylvania book Crystal Diode Circuits Kinks from 1958.


Latest news (January 18th 2011)
New, Philips chapter updated with coming soon items, like OA7, OC43, OC44. OC70, OC75 and OC140.


Latest news (January 16th 2011)
New, Photo of a Selmer Varitone was implemented in my home page, thanks to Chris V. from the US.


Latest news (January 13th 2011)
New, Datasheet of the G11, General Electric Point Contact Transistor.


Latest news (November 9th 2010)
New, GEC, GET101 Germanium Transistor, mid sixties.
New, GEC, GET102 Germanium Transistor, mid sixties.
New, GEC, GET104 Germanium Transistor, mid sixties.
New, GEC, GET120 Germanium Transistor, mid sixties.
New, GEC, GET571 Germanium Transistor, mid sixties.
New, GEC, GET691 Germanium Transistor, mid sixties.
New, GEC, GET692 Germanium Transistor, mid sixties.
New, GEC, GET873 Germanium Transistor, mid sixties.
New, GEC, GET882 Germanium Transistor, mid sixties.
New, GEC, SX51SE Germanium Diode, mid sixties.
New, GEC, SX633 Germanium Diode, mid sixties.
New, GEC, SX634 Germanium Diode, mid sixties.
New, GEC, SX781 Germanium Diode, mid sixties.
New, Mullard, GET103 Germanium Transistor, mid sixties.
New, Mullard, GET106 Germanium Transistor, mid sixties.
New, Mullard, GET111 Germanium Transistor, mid sixties.
New, Mullard, GET114 Germanium Transistor, mid sixties.
New, Mullard, SX634 Germanium Diode, mid sixties.
New, CV4073, CV7008 Germanium transistors, mid sixties
New, Unknown Device, European Germanium Transistor


Latest news (November 6th 2010)
New, CBS Diode, 1N82 early sixties.


Latest news (October 31th 2010)
New, Book from Mullard LTD. Transistors for the experimenter with OC70, OC71 and OC72 from august 1956.


Latest news (September 18th 2010)
New, VR7AEI Germanium Diode
New, XA111 Ediswan PNP Germanium Transistor
New, AAZ12 Philips Germanium Diode
New, 2N458 Texas Instruments PNP Silicon Transistor


Latest news (September 12th 2010)
New, 1N39A CBS Germanium Diode
New, 2N414 Raytheon PNP Germanium Transistor
New, 1N39A for Sale (3pcs)


Latest news (September 11th 2010)
New, A1689 Western Electric device, Point Contact Transistor


Latest news (July 17th 2010)
Updated URL link to Andrew Wylie's website.


Latest news (July 8th 2010)
Update Sylvania book, Microwave Diode Handbook from 1957.


Latest news (June 4th 2010)
Update datasheet Zentih 121-361, with great help from Thomas Ernst from Germany.


Latest news (November 7th 2009)
New Leaflet of CSB Power Transistors 2N155, 2N156 and 2N158.


Latest news (June 21th 2009)
New, 2N25 Western Electric device, Point Contact Transistor
New, GET103, Mullard, PNP Germanium transistor
New, GET105, Mullard, PNP Medium Power Transistor
New, GET67, GEC (UK), PNP Germanium transistor
New, GET115, GEC (UK), PNP Medium Power transistor
New, SX643, GEC (UK), Germanium Diode
New, SX645, GEC (UK), Germanium Diode


Latest news (April 2nd 2009)
New Leaflet of Raytheon transistors with Jetec 30 package.


Latest news (March 14th 2009)
New photos of Raytheon, CK1122, Raysistor
Update CBS-Hytron page with folder Point Contact and Junction Devices 1953

Latest news (March 1th 2009)
New photos of Raytheon, CK2026S, Raysistor
New photos of Raytheon, CK2028S, Raysistor
New photos of Raytheon, CK2052, Raysistor
Coming soon info of Raytheon, CK1122, Raysistor
New photos of Raytheon, CK707 Germanium Diode
New photos of Raytheon, CK708 Germanium Diode
New photos of Raytheon, CK708P Germanium Diode
New photos of Raytheon, CK741 Germanium Diode


Latest news (February 15th 2009)
New photos of Ediswan PXC101, Germanium PNP Transistor
New photos of Kemtron 1N60, Germanium Ceramic Diode
New photos of CBS, 1N64, Germanium Diode
New photos of Sylvania, 1N82, Germanium Diode
New photos of Hivac, XFT2, Germanium Transistor, see for more details AEI/BTH directory
New photos of Raytheon, CK710, Low Noise Mixer Germanium Diode


Latest news (December 14th 2008)
New photos of Western Electric, 1760A, Germanium PNP Point Contact Transistor
New photos of Raytheon, CK901, Dual Germanium Transistor
New photos of STC. Transistor kit, 3 transistors marked as Mixer, IF and IF2
New photos of Sinclair, ST141, NPN Silicon Expitaxial Planar Transistor
New photos of Honeywell, 2N57, PNP Germanium Power Transistor
New photos of Texas Instruments, 2N119, NPN Silicium Low Power Transistor


Latest news (November 29th 2008)
Update website comment from Andre Wylie (England) for several items on my site like S35 from Brush Crystal Company, SX and SZ diodes from Mullard and many more.


Latest news (September 7th 2008)
New Datasheet of CBS-Hytron, PT2A, PT-2S, 2N36, 2N37 and 2N38


Latest news (June 28th 2008)
New photo's of STC, PYE and CBS:
3X/302N STC PNP Germanium Junction Low Power Transistor
V6/R4 PYE PNP Germanium Low Power Transistor
V6/R8 PYE PNP Germanium Low Power Transistor
V10/30 PYE PNP Germanium Low Power Transistor
V10/50 PYE PNP Germanium Low Power Transistor
2N180 CBS PNP Germanium Low Power Transistor
2N156 CBS PNP Germanium Power Transistor
2N158 CBS PNP Germanium Power Transistor
2N180 CBS PNP Germanium Low Power Transistor

For Sale:
2N156 CBS PNP Germanium Power Transistor
2N158 CBS PNP Germanium Power Transistor


Latest news (May 4th 2008)
2N107 General Electric PNP Germanium Alloy Junction Transistor
2N255, CBS PNP Power Transistor
CK256, Raytheon PNP Transistor
H201, Honeywell Germanium Power Tetrode Transistor
2SA12, Hitachi PNP Transistor
2SA15, Hitachi PNP Transistor
2SA31, TEN PNP Transistor
MAS21, PNP Transistor
M5W, Russian PNP Transistor
MN113, Russian PNP Transistor
N416, Russian PNP Transistor
2N174A, Motorola PNP Power Transistor
V10, Newmarket PNP Low Power Transistor

For Sale: 2pcs. 1N434, Silicon Diode from Raytheon


Latest news (April 1st 2008)
904, Texas Instruments Transistor
951, Texas Instruments Transistor
J213, Texas Instruments Transistor V
2N274, RCA Transistor (Donated by Gerard Duperray France)
2N499, Philco Transistor (Donated by Gerard Duperray France)
2N128 Sprague Transistor (Donated by Gerard Duperray France)


Latest news (March 28th 2008)
Updated Brand History with RDR Radio Development and Research Corporation".

Latest news (March 23th 2008)
Pro-Electron (European Semiconductor Standard) and JIS (Japanese Semiconductor Standard) code implemented.

Latest news (March 21th 2008)
JEDEC page with a complete datasheet list of transistors from 2N21 till 2N434 included historic information of JEDEC versus RETMA code
Update Books with the General Electric Transistor Manual from 1957.

Latest news (March 16th 2008)
New brand information regarding Shockley Transistor Corporation.
4D80M-3, Shockley Four Layer Diode (donated by Rose Freeman)
BND26, Shockley Noise Diode
2N128, Philco PNP Transistor (donated by Rose Freeman)
1N456, Texas Instruments Diode (donated by Rose Freeman)
TIX611, Texas Instruments Transistor (donated by Rose Freeman)
2N743, Texas Instruments Transistor (donated by Rose Freeman)
2N3819, Texas Instruments J-FET (donated by Rose Freeman)

Latest news (March 7th 2008)
New brand information regarding General Transistor and Hoffman Electronics.

Latest news (March 1th 2008)
Site fully restyled for better search en global view. Many new rare and very rare items are now implemented on the site. Thanks to David Willenborg from the US, who donated and sold a lot of these items to me. New is also a couple of historic datasheets of the early 2N22, 2N23, 2N24, 2N25 and 2N26 Western Electric. These information is derived from
technical paper: Electron Device Type Registration, release no. 1356, date; September 20, 1954. Many thanks to Ludwell Sibely and David Willenborg (US) for the documentation of Western Electric Company. Ludwell is the author of the book Tube Lore which is a great tube cross reference guide, filled with tube specifications, uses and much more. At last an updated Sale/Wanted list, who can help me with these transistors?

New devices are:
A58 and D57 STC Diode,
1N1425 Western Electric Diode.
WX3347's and WX4813 Westinghouse (Very Rare items!)
2N21A, 2N22, 2N23 Western Electric transistor (Very Rare items!)
3N22 Western Electric transistor
2N66 Western Electric transistor
A1729 Western Electric transistor (Very Rare items!)
G-11 General Electric transistors (Very Rare items!)
1N85 Western Electric Photocell (Very Rare items!)
2N709 RCA Transistor
4JD3A2 General Electric transistor
2N27 and 2N29 Western Electric transistor
2N38 CBS/Hytron transistor


Latest news (January 29th 2008)
Updated Brand History, Tungsram included new logo's.

Latest news (January 27th 2008)
Updated Mullard, CV7089, Photo's
Updated Texas Instruments, 2N389, Photo's
Updated Texas Instruments, 2N498, Photo's
Updated Texas Instruments, 2N1724, Photo's
Updated Texas Instruments, 2N1893, Photo's
Updated General Electric, 2N338,Photo's
Updated Sylvania, 1N21, Photo's
Updated Sylvania, 2N95, Photo's
Updated Honeywell, 2N576, Photo's
Updated Philco, 2N345, Photo's
Updated Philco, 2N502, Photo's
Updated RCA, 2N175 Photo's
Updated Western Electric, GA51984, Photo's

Latest news (January 19th 2008)
Updated Mullard, CV7089, Coming soon information, (donated by Ronald Werner from Norway)
Updated Texas Instruments, 2N389, Coming soon information, (donated by Ronald Werner from Norway)
Updated Texas Instruments, 2N498, Coming soon information, (donated by Ronald Werner from Norway)
Updated Texas Instruments, 2N1724, Coming soon information, (donated by Ronald Werner from Norway)
Updated Texas Instruments, 2N1893, Coming soon information, (donated by Ronald Werner from Norway)
Updated General Electric, 2N338, Coming soon information, (donated by Ronald Werner from Norway)
Updated Sylvania, 1N21, Coming soon information, (donated by Ronald Werner from Norway)

Latest news (January 18th 2008)
Updated WECO, GA-51984 Coming soon information
Updated RCA, 2N175 Coming soon information, (Donated by David Willenborg from the US)
Updated Philco, 2N345 and 2N502 Coming soon information, (Donated by David Willenborg from the US)
Updated Honeywell, 2N575 Coming soon information

Latest news (January 5th 2008)
Updated STC, ASY25, ASY27, ASY28, ASY29, ASY50, ASY55, ASY60, ASY63, T108 and T113 Photo's.
Updated Ediswan, PXA101, XA103, PXA125, XB113 and PXC101 Photo's.
Updated GEC, and SX640 Photo's.
Updated BTH, S35 Photo's.
Updated Unknown Transistors Europe, EFT125, and AL113Photo's.
Updated ITT Transistors Europe, T905A Photo's
Updated Mullard, OC16 and OC44,45 kit Photo's.
Updated Transitron, 2N342 Photo's.


Latest news (December 8nd 2007)
Updated STC, ASY25, ASY27, ASY28, ASY29, ASY50, ASY55, ASY60, ASY63, T108 and T113 Coming soon info.
Updated Ediswan, PXA101, XA103, PXA125, XB113 and PXC101 Coming soon info.
Updated GEC, S35 en SX640 Coming soon info.
Updated Unknown Transistors Europe, EFT125, AL113 and T905A Coming soon info.
Updated Mullard, OC16 and OC44,45 kit Coming soon info.

Latest news (December 8nd 2007)
Updated RCA, 2N218, 2N270, 2N407 and 2N410, new photo's

Latest news (December 3th 2007)
Updated Transitron, 2N342 PNP Silicium Power Transistor. (Coming soon)


Latest news (November 25nd 2007)
New homepage, the 60 years anniversary of the Transistor

Latest news (November 24nd 2007)
Updated RCA, 2N218, 2N270, 2N407 and 2N410, all coming soon


Latest news (October 12nd 2007)
Updated RCA, 2N301 PNP Germanium Power Transistor. (Photo's)
Updated Western Electric, 1858 NPN Grown Junction Germanium Transistor. (Photo's)

Latest news (October 7nd 2007)
Updated Philco, T1362 PNP Germanium Transistors. (Photo's)
Updated Philco, 2N226 PNP Germanium Transistors. (Photo's)
Updated TV Transistor, 6MC PNP Germanium Transistor. (Photo's)
Updated Mullard, OA86 Germanium Diode. (Photo's)
Updated Kemtron,1N34 Germanium Diode. (Photo's)
Updated Radio Receptor, RR66 PNP Germanium Alloy Junction Transistors. (Photo's)
Updated Raytheon; CK721 PNP Germanium Transistor. (Photo's)
Updated Raytheon; CK722 PNP Germanium Transistor Black version with original package. (Photo's)

Latest news (October 6nd 2007)
Updated Books, 28 Uses for Junction Transistors (Sylvania 1955).

Latest news (October 4nd 2007)
Updated Philco, T1362 PNP Germanium Transistors (Coming soon).
Updated TV Transistor, 6MC PNP Germanium Transistors (Coming soon).
Updated Mullard, OA86 Germanium Diode (Coming soon).
Updated Kemtron,1N34 Germanium Diode (Coming soon).


Latest news (September 24nd 2007)
Updated Radio Receptor, RR66 PNP Germanium Alloy Junction Transistors (Coming soon).

Latest news (September 16nd 2007)
Updated Website header with drawn transistors.

Latest news (September 12nd 2007)
Updated RCA, 2N34 PNP Germanium Alloy Junction Transistor (Photo's)
Updated CBS, 2N36 PNP Germanium Alloy Junction Transistor (Photo's)
Updated Raytheon, CK722 Black version PNP Transistor (Photo's)

Latest news (September 5nd 2007)
Updated Western Electric; 2N67 PNP Germanium PNP Point-Contact High-Speed Switching Transistor (Photo's)

Latest news (September 2nd 2007)
Coming soon:
Updated Raytheon; CK721 PNP Germanium Transistor
Updated RCA; 2N34 PNP Germanium Alloy Junction Transistor
Updated CBS; 2N36 PNP Germanium Alloy Junction TRansistor
Updated Western Electric; 2N67 Germanium PNP Point-Contact High-Speed Switching Transistor


Latest news (August 25nd 2007)
All new photo's:
Updated Europe; Edsiwan XA112 germanium Transistor (new)
Updated Europe; GEC semiconductors; S1 Silicium Transistor (new)
Updated Europe; Newmarket semiconductors; V30/20 PNP Germanium Power Transistor (new)
Updated Europe; GEC Plessey semiconductor; SA495 Silicium PNP transistor (new)
Updated Europe; Sinclair semiconductor; T140,
NPN Silicon Epitaxial Planar Transistor (new)
Updated Europe; STC; TK33C, Germanium NPN transistor Low Power (new)
Updated Europe; STC, TK20C, TK24B, TK28C, TK31C, TK41C, TS13, TS17 and a White Spot Mixer, all Germanium PNP Transistors (new)

Latest news (August 17nd 2007)
New technical information:
Updated Europe; AEI; GT45B and XA112 germanium Transistor (coming soon)
Updated Europe; GEC semiconductors; S1 Silicium Transistor (coming soon)
Updated Europe; Newmarket semiconductors; V30/20 PNP Germanium Power Transistor (coming soon)
Updated Europe; GEC Plessey semiconductor; SA495 Silicium PNP transistor (coming soon)
Updated Europe; Sinclair semiconductor; T140,
NPN Silicon Epitaxial Planar Transistor (coming soon)
Updated Europe; STC; TK33C, Germanium NPN transistor Low Power (coming soon)

Updated Brand History, Sinclair a brand-labeller from the UK
Updated Brand History, S
emiconductors Ltd. owned by GEC Plessey Semiconductors.

Latest news (August 15nd 2007)
Updated Books; 50 transistor applications by Raytheon, published by Raytheon around 1955

Latest news (August 14nd 2007)
Updated Books; 28 uses for Junction Transistors, published by Sylvania in 1957

Latest news (August 4nd 2007)
Updated United States; Tung-Sol PNP Power germanium Transistor, 2N278
Updated United States; Sylvania BIG9 replacement kit with 101, 104 and 106 Germanium PNP Transistor
Updated United States; Western Electric PNP Power germanium Transistor, 12F


Latest news (July 31nd 2007)
Updated Europe; AEI/BTH, GT11, GT12, GT41, GT43, GT45B pictures
Updated United States; General Transistor, GT222  pictures
Updated United States; 2N1155 NPN Low Power Silicium Transistor included pictures

Latest news (July 25nd 2007)
Updated Europe; STC, TK20C, TK24B, TK28C, TK31C, TK41C, TS13, TS17 and a White Spot Mixer, all Germanium PNP Transistors (available pictures are coming soon)
Updated Europe; AEI/BTH, GT11, GT12, GT41, GT43, GT45B all Germanium PNP Transistors (available pictures are coming soon)
Updated Europe; Unknown, EW80 Germanium PNP Transistor (available pictures are coming soon)
Updated United States; General Transistor, GT222 Germanium PNP Transistor (available pictures are coming soon)
Updated United States; Sylvania BIG9 replacement kit with 101, 104 and 106 Germanium PNP Transistor (available pictures are coming soon)
Updated Books; Transistors, written by Mr. W. Tebra, early fifties
Updated Brand History; UK Military Crystal Valve, AEI/BTH and Brimar/STC history facts.

Latest news (July 8nd 2007)
Philco Ad's implemented, from the magazine Fortune in 1958.

Latest news (July 2nd 2007)
New background items, photo's with dithering in 2 color format
Updated Mullard, AC127Z PNP Germanium Transistor
Updated Raytheon, 1N434 Germanium Diode
Updated Sylvania, 1N23A, 1N23B General Purpose UHF-MW Silicon Mixer Diode
Updated United States; AMD, 1N663A, High Speed Silicon Switching Diode
Updated United States; Kemtron, 1N34, Germanium Diode
Updated United States; General Electric, 1N23A, General Purpose UHF-MW Silicon Mixer Diode
Updated United States; US, 2N43A, PNP Germanium Transistor
Updated United States; Hi-tron, 2N309, PNP Germanium Transistor
Updated United States; Transitron, SV3173, General Purpose Reference Diode
Updated Europe; Valvo, BFY50, General Purpose Medium Silicon Transistor
Updated Russia; TPAH3ИCTOP, GT313A, Germanium Transistor
Updated Japan; Thosiba, 2SB54, Germanium PNP Transistor
New chapter Books; Transistors "Theory and practice" by Rufus P. Turner published in 1954
New chapter Books; The Transistor Age, published by Southwestern Bell


Latest news (June18nd 2007)
Updated separating the site
www.transparentsound.com with www.vintagetransistors.com
"Vintage Transistors", "RCA 2N109, 2N139 and 2N140" Germanium Transistors.
"Vintage Transistors", "AMD" implemented in chapter Brand History

Latest news (June7nd 2007)
Updated "Vintage Transistors & Diodes", "Western Electric" 12B Germanium Transistor and WECO 420B Germanium Diode.


Latest news (May27nd 2007)
Updated "Vintage Transistors & Diodes", "Western Electric" 4D" and "Delco" "2N256" Power Germanium Transistor.

Latest news (May17nd 2007)
Updated "Vintage Transistors & Diodes", "Sylvania" 2N68, 2N102, 2N143, 2N144, 2N247, 2N255 and 2N711 Germanium Transistors.

Latest news (May 9nd 2007)
Updated "Vintage Transistors & Diodes", "WECO" 2N110 Transistor and "WECO" GA50649 Varistor.

Latest news (May 3nd 2007)
Navigation of the site totally revised, "Vintage Transistor" implemented in the site.
Updated "Vintage Transistors & Diodes", "RCA" 2N109-C and Sylvania's BIG-9 replacement kit.


Latest news (April 14nd 2007)
Updated "Vintage Transistors & Diodes", "Delco" 2N174 Power Transistor.


Latest news (March 30nd 2007)
Updated "Vintage Transistors & Diodes", "Western Electric" A1698, A1768 and $B & 4C PNP Low Power Transistors,
"Philips" OC71 PNP Low Power Transistor, "RCA"2N2339 Medium Power PNP Transistor

Latest news (March 9nd 2007)
Updated "Vintage Transistors & Diodes", "TI" 2N542 SI Low Power Transistor, "ITT" 4E50 Four-Layer Shockley Diode

Latest news (March 8nd 2007)
Updated "Vintage Transistors & Diodes", "RCA" 2N109, 2N247, 2N647, 40235, "Zenith" 121-361

Latest news (March 4nd 2007)
Updated "Vintage Transistors & Diodes", Photo's  General Purpose Regulator Diode, 2N1530A from Hoffman.

Latest news (March 2nd 2007)
Announcement coming soon new transistors, "RCA" 2N109, 2N247, 2N647, 40235, "Zenith" 121-361


Latest news (February 18th 2007)
Updated "Vintage Transistors & Diodes", Manufactory  "GPC, Germanium Products Corp."

Latest news (February 16th 2007)
Updated "Vintage Transistors & Diodes", Photo's  Germanium Power PNP Transistor, AD149 Mullard,
Germanium Power PNP Transistor, OC45 Mullard.

Latest news (February 9th 2007)
Updated "Vintage Transistors & Diodes", Photo's  Germanium Power PNP Transistor, 2N101 Sylvania,
Germanium Power PNP Transistor, 2N26 CBS, Germanium Power PNP Transistor, 2N1523 Delco.

Latest news (February 6th 2007)
Updated "Vintage Transistors & Diodes", Photo's  Germanium PNP Transistor, 2N34 Sylvania".


Latest news (January 30th 2007)
Updated "Vintage Transistors & Diodes", Manufactory  "Bendix" & "Transistor products Inc."

Latest news (January 28th 2007)
Updated complete navigation of the website with interactive knobs and tabs.

Latest news (January 26th 2007)
Updated "Vintage Transistors & Diodes", Manufactory  "Van der Heem".

Latest news (January 24th 2007)
Updated "Vintage Transistors & Diodes", Photo's  Germanium PNP Point Contact Transistor, 2N23 Western Electric".

Latest news (January 21th 2007)
Updated "Vintage Transistors & Diodes", Photo's ZJ3-1 Prototype Germanium PNP Transistor,  General Electric.
Updated "Vintage Transistors & Diodes", Manufactures "Intermetall", "Standard Elektrik Lorenz", "TeKaDe" and "Westinghouse".

Latest news (January 19th 2007)
Updated "Vintage Transistors & Diodes", Manufactures "British Thomson Houston".

Latest news (January 17th 2007)
Updated "Vintage Transistors & Diodes", Manufactures "Fujitsu-Ten", "Radio Receptor", "Clevite", "Newmarket" and "Pye Ltd.".

Latest news (January 15th 2007)
Updated "Vintage Transistors & Diodes", Photos Power Transistor 2N173 Motorola
Updated "Vintage Transistors & Diodes", Manufactures "Western Electric"

Latest news (January 13th 2007)
Updated "Vintage Transistors & Diodes", Manufactures "Mitsubishi"

Latest news (January 12th 2007)
Updated "Vintage Transistors & Diodes", Manufactures "Toshiba"

Latest news (January 11th 2007)
Updated "Vintage Transistors & Diodes", Manufactures "Delco" and "NEC"

Latest news (January 10th 2007)
Updated "Vintage Transistors & Diodes", Photos Proto type 2N176 Motorola
Updated "Vintage Transistors & Diodes", Manufactures "National Union"

Latest news (January 9th 2007)
Updated "Vintage Transistors & Diodes", Proto type PNP Germanium Transistor ZJ7 from General Electric
Updated "Vintage Transistors & Diodes", Manufactures "Transitron"

Latest news (January 8th 2007)
Updated "Vintage Transistors & Diodes", Manufactures "Spraguel"

Latest news (January 7th 2007)
Updated "Vintage Transistors & Diodes", Manufactures "Tung-Sol", "Honeywell" and "Zenith"

Latest news (January 4th 2007)
Updated "Vintage Transistors & Diodes", BA6 and CK722 Blister Germanium PNP transistors


Latest news (December 31st 2006)
Updated Transistor page index included Manufactory history "Amperex" & "Valvo"

Latest news (December 28st 2006)
Updated Transistor page index included Manufactory history

Latest news (December 22st 2006)
Updated "Vintage Transistors & Diodes", XN2, T2546, CK760A,  2N306, 2N393, 2N501A Germanium transistors
Updated "Vintage Transistors & Diodes", OA10, SX635 Germanium Zener Diodes

Latest news (December 6st 2006)
Updated "Vintage Transistors & Diodes", 2N417-1 and 2N417-2 Germanium PNP transistors

Latest news (December 3st 2006)
Updated "Sphinx EDA", Myth-7 Tuner, PJ-18MK2 Power Amplifier

Latest news (December 1st 2006)
Updated "Sphinx EDA"", Phono Equaliser


Latest news (November 30th 2006)
Updated "Vintage Transistors & Diodes" with pre-announcement XN2 & T2565

Latest news (November 9th 2006)
Updated "Vintage Transistors & Diodes" with pre-announcement 2N417

Latest news (November 4th 2006)
Updated "Vintage Transistors & Diodes"


Latest news (October 24th 2006)
New site "Vintage Transistors & Diodes implemented"