A perplexing puzzle: National NC-183D power transformer

[Kamakiri]

Here's one last shot.....a 5V4 gave its life so I could make a socket adapter for the top of the transformer so that I could wire everything to the existing 5U4 socket in the chassis enabling me to close the lid

Weird thing about this receiver.....the gain is off the charts. Local AM stations will overload the RF even with the gain on minimum unless I slightly de-tune them. Even the religious stations on shortwave do the same thing.

I'm not sure if this thing is just an incredible performer, or if there's an issue. To its credit, I was listening to the Voice of Vietnam and caught a QSO between two hams in the UK on it last night, and I've never heard either before....

[Electronic M]

Originally Posted by Kamakiri

Here's one last shot.....a 5V4 gave its life so I could make a socket adapter for the top of the transformer so that I could wire everything to the existing 5U4 socket in the chassis enabling me to close the lid .

Part of the reason I keep a selection of dud tubes on hand: so I can crunch a dud and reuse it's base if needed....Other reasons include having tubes to rip apart guilt free while explaining their inner workings to a novice, target practice , and cause I can be a bit of a hoarder.

[jr_tech]

Originally Posted by Kamakiri

Weird thing about this receiver.....the gain is off the charts. Local AM stations will overload the RF even with the gain on minimum unless I slightly de-tune them. Even the religious stations on shortwave do the same thing.

I'm not sure if this thing is just an incredible performer, or if there's an issue.

You might want to check/replace a few wax caps connected to the rf gain control and the avc amp (6AH6) in the back corner of the chassis. Couple of wax .1 uf and some smaller wax caps in that area are prime suspects, IMHO.

jr