Welcome Guest! Be sure you know and follow the Phorum Rules before posting. Thank you and Enjoy! (January 12, 2025) x

Thread Closed

World's First All-Transistor Phonograph developed by Philco-1955
#1

Hello,

I am new to this site and I know that this section is mainly about radios. But, I could not find a section on phonographs- so PLEASE excuse me....

I am wondering if anyone has or knows of someone, who might have a 1955 Philco TPA-1 or TPA-2 All-Transistor phonograph that come out in the fall of 1955. Philco only made this item from 1955-56. This Philco model was the World's first all-transistor phonograph that was made. It was a 45rpm portable phonograph that operated operated on (4) 1.5 "D" batteries. The chassis had used (3) Philco germanium alloy-junction PNP type transistors in its circuitry, instead of vacuum tubes.


Thanks Rick


Messages In This Thread
World's First All-Transistor Phonograph developed by Philco-1955 - by electricalengineer1958 - 01-25-2012, 09:58 PM
RE: 1955 Philco TPA-1 or TPA-2 - by Ron Ramirez - 04-03-2012, 06:25 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Philco 71 Code 125
Hello,  I am in need of a schematic for this radio. Mine has the three separate circular tube shields and a shadow me...dconant — 08:06 AM
Stromberg Carlson 1500 Squeal
And life just keeps getting more complicated.dconant — 07:57 AM
54C Complete Teardown/Rebuild
Hello Roy, here is this one sincerely Richardradiorich — 12:45 AM
54C Complete Teardown/Rebuild
Richard, Had grabbed it already but thank you just the same.  I find myself wanting to find some way to block out the...glyphmon — 12:03 AM
54C Complete Teardown/Rebuild
Hello roy, here is a link to the schematic . Sincerely Richardradiorich — 11:54 PM
54C Complete Teardown/Rebuild
Richard, The Silvertone 2014 also is a transformerless set, so I am incorporating a 1:1 600 ohm audio isolation transfo...glyphmon — 11:37 PM
Preliminary work on wife's Silvertone 2014
Did an alignment today which was interesting.  IF alignment went great, almost all was already spot-on.  Adjusting on th...glyphmon — 11:35 PM
54C Complete Teardown/Rebuild
The main problem with adding a Bluetooth input is that this set lacks a traditional power transformer to isolate it from...radiorich — 11:19 PM
54C Cabinet Refinish
I started stripping this cabinet before it got super chilly out because I knew I wasn't going to be able to work on ...glyphmon — 11:18 PM
54C Complete Teardown/Rebuild
While I'm waiting to wrap up the final steps on my wife's Silvertone 2014, I started disassembly on the next project.  O...glyphmon — 11:07 PM

[-]
Who's Online
There are currently no members online.

>