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

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

Decorative foil, under Philco chassis.
#4

It could be use to reduce hum as the regenerate detector operates at a very high gain. If you put your hand near the 77 tube you will notice an increase in hum. Good grounding around the detector/wiring is a must.
Terry
ps the radiation from would be a 460kc not at the frequency that the set is tune to. That was the problem back in the 1920's as the detector was tuned to the station on the bc band and would radiate over the broadcast signal to nearby receivers.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
Re: Decorative foil, under Philco chassis. - by 7estatdef - 01-13-2011, 06:13 PM



Users browsing this thread: 1 Guest(s)
[-]
Recent Posts
Electrolytic restuffing/internals
I don’t have a vise so I had to hold it in my hand. Not optimal but covered up by the hvac tape in the end. I have a few...bridkarl — 11:52 PM
Electrolytic restuffing/internals
Bridkarl A question. For a hacksaw the cut looks a little...jagged. Why?morzh — 11:45 PM
The list of my radio & TV collection!
As usual, an interesting post from you, Peter. This seems to be similar to the RCA 3-BX-671 and the Zenith Transoceanic...MrFixr55 — 11:41 PM
The list of my radio & TV collection!
Hello Peter, Thank you for sharing your new video and looks like your weather is nice their too. it was like 25 Cel...radiorich — 11:05 PM
Electrolytic restuffing/internals
hello bridkarl, I will post some better photos ! Sincerely Richardradiorich — 10:14 PM
Electrolytic restuffing/internals
I just taped the two pieces of the cap together, but I can see your method is better. I just held the lead in with solde...bridkarl — 08:18 PM
Electrolytic restuffing/internals
hello bridkarl, Well done ! Here is a Photo of the base of Philco capacitor that I cut open you can see how I glued th...radiorich — 08:14 PM
philco predicta
Hi CGL18, Here is a link for the schematic from the Early television Foundation: WARNING!! One side of the Chassis i...MrFixr55 — 08:09 PM
The list of my radio & TV collection!
Peter; I like Canadian General Electric sets, whilst the model numbers are often the same as their U.S General Electr...Arran — 05:44 PM
Electrolytic restuffing/internals
Did as suggested. Cut can with hacksaw, removed internals, attached new 8mf cap - with ample use of cardboard and elec...bridkarl — 03:36 PM

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

>