Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5

New Acqusition Philco 21
#6

I'm surprised that all three RF coils would be open, this warrants further investigation. The audio interstage burning out is a common problem with sets from this era but not an open speaker field coil, those rarely burn out unless there is a shorted output filter capacitor. You may find in each instance that the problem is something as simple as a bad solder joint or a wore broken away from the terminal.
Best Regards
Arran


Messages In This Thread
New Acqusition Philco 21 - by 7estatdef - 02-21-2011, 11:53 AM
Re: New Acqusition Philco 21 - by 7estatdef - 02-21-2011, 05:55 PM
Re: New Acqusition Philco 21 - by Ron Ramirez - 02-22-2011, 08:04 AM
Re: New Acqusition Philco 21 - by TA Forbes - 02-22-2011, 01:28 PM
Re: New Acqusition Philco 21 - by 7estatdef - 02-22-2011, 06:14 PM
Re: New Acqusition Philco 21 - by Arran - 02-22-2011, 09:48 PM
Re: New Acqusition Philco 21 - by 7estatdef - 02-22-2011, 09:56 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Cannot Adjust an IF Transformer’s cores
Outstanding work indeed. I wish I could come up with solutions like this.slford310 — 11:16 PM
Cannot Adjust an IF Transformer’s cores
The abilities of our 'Phorum Pholks" never ceases to amaze me! Fantastic fabrication, Joseph! I'm waiting now for...GarySP — 08:27 PM
PT-6 antenna connections
Thanks. I never realized that was a notch noted in the schematic as described. I’ll recheck my wiring.bridkarl — 08:13 PM
Cannot Adjust an IF Transformer’s cores
Thank you! I was quite new to the Phorum when I started this post, so I feel like it might be advantageous to publish a ...jrblasde — 08:07 PM
PT-6 antenna connections
Notice in the schematic the notch at the bottom of the antenna coil is between pins 3 & 4. Yes, pin 6 of the 7C6 is...RodB — 07:34 PM
bridkarl
I have two PT-6 chassis. On both there is a blue wire that runs from the above chassis transformer to pin 6 of 7C6. So t...bridkarl — 07:23 PM
Cannot Adjust an IF Transformer’s cores
Joseph, now you are an engineer!!RodB — 06:37 PM
PT-6 antenna connections
Hi, reading your explanation I can see the confusion. If you take it one connection at a time it should result in a desi...RodB — 06:34 PM
Cannot Adjust an IF Transformer’s cores
It works! I received the PCBs this morning in the mail, and put everything together. I reused the base from the original...jrblasde — 04:32 PM
PT-6 antenna connections
I seem to have lost my way on this PT-6. I see the antenna aerial transformer schematic - I’m reading pins 1 through ...bridkarl — 12:30 PM

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

>