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

Philco 3650 #34 Cap
#1

Hello, There is a capacitor (#34 .05) on the top of the chassis that connects to the tuning cap ground braid in the front and to the cathode of the 6A7 tube. Is there any reason why this cannot go underneath the chassis?

Thanks,
Dan
#2

Sometimes parts are at a location for a reason start moving things around can cause problems. If you are going to restore the set put everything back as they were and see how it works. Then move things around and see what happens. David
#3

I do not think that moving that specific cap will do anything, but I would keep the connection as the shortest possible, and to the GND as close as possible to the GND point where the rest of the elements of the oscillator connect. The tuning caps' braid might just be such a point.

David's got a point: when something was connecyted or placed in a certain way, there might've been a reason for it, so it is always best to keep things as original as possible. If you want to optimize physical location, as Davi said - make the radio work well in the original configuration, and then introduce changes one by one, checking the performance after each one completed.

People who do not drink, do not smoke, do not eat red meat will one day feel really stupid lying there and dying from nothing.
#4

On my American made 650 there is a metal, grounded shield around that cap. When a special hole is punched in the chassis to allow the appropriate connection it's usually for a good reason.
#5

Thanks guys that makes sense to me.




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.

>