[ARC5] ARC 5 transmitter scale replacement - and general cap replacement question

[Kenneth G. Gordon]

On 15 Apr 2014 at 7:43, mike Kana wrote:

> Hi all
> I pulled out my 80m RCAF transmitter and found that the plastic scale over the
> roller inductor has shrunk/warped Are there any replacement scale options out
> there?

Replacing the "glass" isn't the hard part: getting the scale on it is. I don't have 
an answer for you on that one: sorry.

> I cleaned the top cover with soap/water and cleaned with NeverDull.

I use "Mother's Mag and Aluminum Wheel Cleaner" on mine. Makes them 
just beautiful.

> I removed the bottom plate and the large triple cap had a good dollop of green
> ooze and a couple other caps show signs of leakage so I figure I'll replace the
> caps with modern caps and affix those to standoffs bolted to the sides using
> existing screw holes.

Not necessary for most.I use 400 VDC .047 MFD metalized film types and 
connect them directly where they are needed. I can send you a couple of 
photos of those I've done.

Unless you intend to operate your receiver from a dynamotor, you can 
dispense with the triple .22 MFD job (C-16A/B/C), L-14 and L-15, and C-32 
completely.

Of course, it won't hurt anything to leave the chokes in place, but although all 
of my present receivers have been severely hacked, I have yet to find any of 
the can-caps that are good.

> Question - if I was to purchase a supply of replacement caps for this set and
> others, where has the group gone to get parts - Antique Electronic Supply,
> Mouser, junque box, etc?

I get mine from Mouser.
 
> My plan is to not restuff the pots - I'll save them and the next owner can take
> a shot at it.....

See this web page:

http://www.w7ekb.com/glowbugs/Military/PDF%20files/ARC5/Restuffing.html

Good luck, Mike.

The BC-455 is AWFULLY wide...

Ken W7EKB