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Old 8th June 2010, 06:37 PM   #41
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Quote:
Originally Posted by tiefbassuebertr View Post
First Bruns Guitar Amp without tubes - Burns "Orbit Three" schema power amp
With Newmarket germaniums as well - still have some of those in the bottom of a drawer ....
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Old 13th June 2010, 12:43 AM   #42
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Default Philips L3X71T - portable All-Transistor Radio from 1957

First solid state portable from Philips in this output power aera: "L3X 71 T 42" Not OTL power output stage equipped with 2 x OC72 from Mullard/Valvo.
Attached Images
File Type: jpg Philips L3X71T front.jpg (65.9 KB, 397 views)
File Type: jpg Philips L3x71t rear close.jpg (25.7 KB, 379 views)
File Type: jpg Philips L3X71T rear open.jpg (76.5 KB, 376 views)
File Type: jpg Philips L3X71T.jpg (61.9 KB, 364 views)
File Type: jpg Philips oc72.jpg (3.8 KB, 351 views)

Last edited by tiefbassuebertr; 13th June 2010 at 12:52 AM.
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Old 13th June 2010, 10:25 PM   #43
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Default Cover Photos about additional vintage Transistor/Semiconductor Data books

Here more databook covers
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Old 18th June 2010, 12:46 PM   #44
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Default 8TP-3 (8TP3), World's second and Raytheon's first transistor AM radio

Here's an inside view of the 8TP-3, Raytheon's first transistor AM radio and the world's second. The chassis shares much with tube radio construction: metal chassis, socketed transistors (similar to how tubes were plugged into sockets), large tuning capacitor and large paper/wax capacitors.

Schematics and more informations there:
ray8tp
Transistor Radio 8TP-1 (8TP1) Ch= 8RT1 (8-RT-1) Radio Raythe
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File Type: jpg Raytheon 8TP-3 front.jpg (117.8 KB, 28 views)
File Type: jpg Raytheon 8TP-3 rear open.jpg (134.3 KB, 77 views)
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Old 7th October 2010, 12:28 PM   #45
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I think about to start a thread with vintage analoge integrated circuits (IC's 1957 until 1975) so as a collection of cover pics from the appropriate data books. Where I filed this thread at best?
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Old 7th October 2010, 03:09 PM   #46
ide2003 is offline ide2003  Indonesia
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wooww...a lot of vintage transistor data, thanks tiefbass. just curious and try to learn and I'm kind of old stuff lover.

regards
TeguhPS
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Old 28th February 2011, 04:57 PM   #47
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who can post more cover pictures of japanese transistor databooks like the few examples about post #37?
http://auctions.yahoo.co.jp/
is therefore the best source (keyword "Databook", "Data Book" so as this term in japan language).
I am looking in the moment to the databook from Sanken where as the "ST610" and the "ST-615" is inside (databook about Sanken's first silicon power devices). The importantest information for me is the exactly title calling so as the date of first release.

Last edited by tiefbassuebertr; 28th February 2011 at 05:01 PM.
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Old 25th March 2011, 07:23 PM   #48
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Hard to find vintage databooks from Japan about semiconductors:
Im still looking to such data book cover photos. Who can post more of them?

Last edited by tiefbassuebertr; 25th March 2011 at 07:42 PM.
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Old 6th April 2011, 05:46 AM   #49
latala is offline latala  United Kingdom
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I have a Bryan transistor amplifier that is fitted with most unusual plastic power transistors the metal tabs have a hole at the top and also 1 at the bottom
the base comes out the left side at the side and the emitter at the right side not at the bottom but at the middle side in each case
These are RCA devices but I can read no more on the package ?
Have you come across this package before
regards Trev
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Old 6th April 2011, 10:27 AM   #50
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Default Bryan Transistor Amplifier

"bryan transistor amplifier" ??
I don't find any information about google with this term.
What is the year of manufacturing?
is it a amplifier for stage/public address, home-hifi or guitar/instrumental?

Last edited by tiefbassuebertr; 6th April 2011 at 10:29 AM.
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