[Nathan Slingerland]

After a week and a half of traveling I'm ready to get back in the saddle with the 37-690!

Here's the state of things:

Variac Test

I brought the set up on the variac as a quick test. I did hear some small amount of clicks when adjusting the controls but no signal.

I tried listening for the local oscillator with another AM radio but didn't pick anything up.

Replacement Woofer

I received the replacement speaker from Gary at oldradioparts.com.

I repeated the same test. The volume control adjusted the (small) amount of hum in the speaker but of course still no signal.

Main Chassis - Start of Recap

Here's what the underside of the main chassis looks like:

[Image: https://farm2.staticflickr.com/1850/4424...9b9d_h.jpg]

My first priority was to replace Part 99 Electrolytic Condenser (2, 2, 1 mfd). Doing that was easier said than done since it's not directly accessible.
I carefully labeled and desoldered the wires connecting the phenolic board.

[Image: https://farm2.staticflickr.com/1841/2935...d3d5_z.jpg]

[Image: https://farm2.staticflickr.com/1883/4424...2403_z.jpg]

I restuffed Part 99 as with the previous ones. This one is a dry electrolytic and required a lot of help from the heat gun in order to get the original capacitor out.

[Image: https://farm2.staticflickr.com/1894/2935...d788_z.jpg]

I also restuffed the connected tubular caps as well as Part 134 Condenser (.1, .1, .8 mfd).

[Image: https://farm2.staticflickr.com/1847/4250...fac1_z.jpg] [Image: https://farm2.staticflickr.com/1845/4250...97de_z.jpg]

Next up: lots more recap!