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
#22

I am kidding on some of that but my big attraction is the amp and just how it sounds as Dad gave me one of these amps for Christmas ~1956 when we lived in Mexico City for 2 years and at the age of 6 I pretty much destroyed it and then all my 'toys' were left behind in the move up to NorCal in '57 when Dad was transferred to start Philco in Palo Alto. I have a bunch of RCA 45 players and I know how they sound and expect less from this, but with external input it sounds pretty darn good for what i is, so if I could hide some modules inside retaining the case intact and phono parts etc.

I saw all that conformal coating on the back of the board and the clinched over leads so didn't even want to try unsoldering from the back for the one cap, the .01 is the only other and probably not too critical maybe for anti oscillation? not sure- doesn't seem to be a problem and the volume is back! Confusing why it all seemed to be working and then looked athe position of the 40 @ 3V in the schematic . . .

Dad worked at Philco until '70 when he died on the job of a heart attack, I miss him dearly but the Philco legend carries on!


Messages In This Thread
RE: 1955 Philco TPA-1 or TPA-2 - by Ron Ramirez - 04-03-2012, 06:25 PM
RE: World's First All-Transistor Phonograph developed by Philco-1955 - by PhilcoFordTesla - 11-17-2019, 07:06 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.

>