1956 Wards Airline Record Player GA1001-A

[Hi-Fi-Mogul]

Hello all,
This is another 3 tube mono amp that had excessive
hum after complete re-cap.

I applied Motorola Minion's advice again on this one,
and I added an electrolytic cap from B- to chassis.

In this case, I decided to try a smaller value e-lytic.
I used a 10 mF 160V cap, and it worked as well
as a larger value in dropping the hum to almost zero.
I'll add a polarized plug to the AC cord, and done.

I'm glad to continue this technique after first using it on the
1959 Zenith stereo.

[electra225]

Another great job, Mr. Mogul! Is the tip about adding a cap from B-to chassis in the Getting Started board? If not, it should be. Thanks for sharing.

[William]

That Wards record player looks very similar to a VM model in Gary's site. My guess, VM built it for Wards.

Bill

[Hi-Fi-Mogul]

I did a post on "getting started", with the link to the
topic page concerning the hum solution.

Today, I will try putting a 10mF e-lytic cap on a Columbia 617,
that has the same type of hum problem,
post capacitor replacements.

[hermitcrab]

I wonder if a cap from b - to ground would work on my Magnavox imperial?... I have recapped the entire set and I still have a low hum when it gets turned on... kinda sounds like a guitar amp with nothing plugged into it..once music starts playing the hum is unnoticeable...

[electra225]

Magnavox has so many electrolytics in their chassis that they filter the filters in many cases. If your Imperial is like mine, it has a few 6EU7's in it. In the way of a suggestion, I'd check those for cathode to heater shorts. Try subbing the 6EU7's if you have some and see if that affects the hum any.

[hermitcrab]

I guess I should have mentioned it is the SS imperial with the hum ... only other tube imperial I have is the one you are looking for...

[electra225]

Oops. Sorry......