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

Philco 77 volume control
#16

I doubt if you'll find a 1750 ohm rheostat. I wouldn't be afraid to try 1800 or even 2000 ohms.

--
Ron Ramirez
Ferdinand IN
#17

2000 Ohms is fine - actually this is what's quoted in the Rider's for it.

Bigger wattage is always OK, as long as you can fit it.

You cannot venture too far in the larger impedance area - it will screw up both 224 tubes Cathodes' potentials, especially the 2nd one.
#18

Personally, I think Terry's (7estatdef) idea has great merit; however, I must add that converting a 65 to operate with AVC is not a project for the novice. I would try it if it were mine.

--
Ron Ramirez
Ferdinand IN
#19

How about something like this?

http://www.ebay.com/itm/220560054014?ssP...1497.l2649

-Ken
#20

If they fit the size, I think you can use them. There will be a little less regulation but you may not notice it that much.

PS. Ohmite still makes those, but for the price you can't beat this Russian deal of yours. And , in my experience, Russian military components are (were that is) very good. They no longer make'em, they buy Chinese.

http://www.mouser.com/Passive-Components...at&FS=True

PPS. You can add a 200 Ohm 2W resistor on either end (to keep the voltages accurate) in series (to bring the total to 1.7K), and see where it works the best, and leave it there.
#21

Thanks for all your great advice everyone! I put in the Russian surplus rheostat and it works great! I'm now in the process of stripping the body with Citristrip , which works great and you can use it indoors.

Thanks again,
Ken




Users browsing this thread: 9 Guest(s)
[-]
Recent Posts
A Marconi model 86
Dan; I've seen some Marconi sets like that before, one was a console though I'm not sure if it was a model 86. It's a...Arran — 05:09 PM
An attempt to remove the Field Coil from a G speaker
Milkjug plastic? Whatever is chosen for the spider, the material must be compatible with popular adhesives... Th...Chas — 05:05 PM
An attempt to remove the Field Coil from a G speaker
Mike; I would not use plastic from a milk jug for a spider, first it's polyethylene/polypropylene which resists most ...Arran — 04:56 PM
Philco model 60
This is my thread on 60 from 2016. I had to rewind the osc coil, and I actually counted the turns and then rewound i...morzh — 03:34 PM
Philco model 60
Yes, Mark belongs to the same Michigan Antique Radio Club that I do. I suspect that the oscillator coil is in need of a ...Radios1340 — 03:10 PM
A Marconi model 86
Yeah. I am dreading the thought of what to do with all my consoles when I will no longer be able to move them around. I...morzh — 02:51 PM
1947 Silvertone 7086 Wire Recorder/Phono/Radio on YouTube
Cool gadget, Buzz. I took me a couple of second to undestand that that oscillating thing makes the wire to spool correc...morzh — 02:50 PM
A Marconi model 86
My back hurts already, you could build a house with all the wood. PaulPaul Philco322 — 02:49 PM
1947 Silvertone 7086 Wire Recorder/Phono/Radio on YouTube
Part 4 of this series now uploaded link below to anyone interested Buzz — 02:39 PM
Philco model 60
Welcome to the Phorum, Radios1340!  The oscillator coil on the 60 is a common culprit.  I just bought a 60B (June 1934) ...GarySP — 02:33 PM

[-]
Who's Online
There are currently 8183 online users. [Complete List]
» 1 Member(s) | 8182 Guest(s)
Avatar

>