Latest news regarding this site:
Latest news (August 17th
2008)
Updated chapter measurements, with link to Rod Elliot website regarding
Small Thiele loudspeaker parameters.
Latest news (June18th
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 (June7th
2007)
Updated "Vintage Transistors & Diodes", "Western Electric"
12B Germanium Transistor and WECO 420B Germanium Diode.
Latest news (May27th
2007)
Updated "Vintage Transistors & Diodes", "Western Electric"
4D" and "Delco" "2N256" Power Germanium Transistor.
Latest news (May17thd
2007)
Updated "Vintage Transistors & Diodes", "Sylvania" 2N68,
2N102, 2N143, 2N144, 2N247, 2N255 and 2N711 Germanium Transistors.
Latest news (May 9th
2007)
Updated "Vintage Transistors & Diodes", "WECO" 2N110
Transistor
and "WECO" GA50649 Varistor.
Latest news (May 3th
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 14th
2007)
Updated "Vintage Transistors & Diodes", "Delco" 2N174 Power Transistor.
Latest news (March 30th
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 9th
2007)
Updated "Vintage Transistors & Diodes", "TI" 2N542
SI Low Power Transistor,
"ITT" 4E50 Four-Layer Shockley Diode
Latest news (March 8th
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 31th
2006)
Updated Transistor page index included Manufactory history "Amperex"
& "Valvo"
Latest news (December 28th
2006)
Updated Transistor page index included Manufactory history
Latest news (December 22th
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 6th
2006)
Updated "Vintage Transistors & Diodes", 2N417-1 and 2N417-2
Germanium PNP transistors
Latest news (December 3th
2006)
Updated "Sphinx EDA", Myth-7 Tuner, PJ-18MK2 Power Amplifier
Latest news (December 1th
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"
Latest news (October 23th
2006)
Sphinx EDA drawings PJ2MK2 in pdf format available for restricted users
Latest news (September 22th
2006)
Sphinx EDA drawings PJ-12 in pdf format available for restricted users
Latest news (July 24th
2006)
Website removed to Windows Active24 Server
Latest news (March 28th
2005)
Update PAF Table.
Latest news (March 15th
2005)
Update animated amp.gif.
Latest news (March 6th
2005)
New page structure.
Latest news (March 1th
2005)
Noise & dB buttons and Amp logo placed.
Latest news (February 23th
2005)
Announcement of the new page "The fundamentals of Balanced Lines.
Latest news (February 5th
2005)
Decibel page updated.
Latest news (January 6th
2005)
Decibel page appended.
Latest news (January 4th
2005)
Noise page and measurement page updated.
Latest news (January 1th
2005)
Noise page appended.
Latest news (December 12th,
2004)
The Measure page is updated with schematics and test sound.
Latest news (December 4th,
2004)
The site is updated with Measure page items, text changes.
Latest news (November 27th,
2004)
The site is updated with Measure page.
Latest news (November 21th,
2004)
The site is updated with For Sale page.
Latest news (November 12th,
2004)
The site is updated with the several book descriptions.
Latest news (November 7th,
2004)
The site is updated with the Tunnel Pulser and the modified Thorens TD-316.
Latest news (October 24th,
2004)
Transparent Sound has updated
the web-site and is still under construction. Suggestions are welcome.
Latest news (October 3th, 2004)
As from November 1, 2004 Marcel Konstapel is no longer participating in Transparent Sound. Jan de Groot will continue to run Transparent Sound as a one man company. Because Marcel was responsible for embedded software design, this part of Transparent Sound will for the moment no longer exist. However, analogue and digital hardware design, which was and is the responsibility of Jan, will continue.
