These are my readings with the HV leads disconnected from the rectifier.

Looks to be shorted.

Jrs,

Are the connections marked Red the primary side of the transformer?

Possibly a low voltage supply problem (11.4 volts seems quite low?).

Perhaps it might be worth considering a broken or defective connection to the transformer, blown fuse, defective switch etc. Another possibility to consider is checking the resistance value of the windings against that stated on the circuit diagram and allow, say, up to plus or minus 5%.

If you remain suspicious there is a short on one or more of the transformer windings take a fairly close sniff at the (disconnected from all power sources) transformer to determine whether or not excessive heat has affected any of the resinous substances used in its manufacture – remember that heat is one of the largest killers of electronic components.

Just to mention, anecdotal - of course, I have experienced similar problems over the years and have dismantled and unpicked defective transformers, carefully noting the numbers of turns, wire gauges, etc – not recommended as it is a tedious operation, needless to mention, time consuming.

Best of luck my friend, BushRadio.

jrs,

Its me again! Is the transformer a 'step-up' type (Those that were incorporated into valve operated car radios)?

BushRadio.

This is an RCA model 128 console, right? Schematic here: http://www.nostalgiaair.org/Resources/737/M0014737.htm

I'd suggest lifting the center tap wire (black & brown) from ground and then measuring brown to brown once more, should be around 400 ohms, the sum of the other two readings 171 + 194

-Sam T.

Interesting that the 87 ohms is what you would get if the secondary had become paralleled (so to speak).

try applying 120 Vac to the primary and then measuring the HV secondary.

Best to wire a lamp in series with the primary. If the secondary really reads 87 ohms, between ends, it may go up in smoke or blow a circuit breaker.

Hmmm. Good point. Calculates out to 91. Hard to see how you could get anything other than the sum of the two sides. 11.4 on primary is in the ballpark, though.

Well I took it apart and it is done for!

Black char and bad smell. I applied power to it to measure HV output and the highest I got was 20V before it started bubbling and gurgling

I will have to add this to the list of parts to locate.

I just can't seem to catch a break with these last two radios I have done.

Oh yea and my wife has ZERO sympathy for me

Must admit I chuckled at your misery John, sorry about that.
Only because I've been there.

-Sam T.