[Drake] Drake L75 knowledge??

[Dave Edwards]

Thanks guys for the tips.

Since you sent me some info, here is what I did......

Pop open the cabinet
Put in a spare 3-500 that I had.

I noted that the .82 ohm resistor I put in Sunday is half blown in 
half...bakelite is missing from half of it, but guts are still intact!

Close interlocks and power on.

Dim the lights

When I simply key the mic....no audio...I can see a momentary flash from 
that .82 resistor.

If I say "one" , "one"....I see essentially a modulation indicator from 
that resistor. The inner guts flash on and off.

Each modulation peak was still hitting 500 watts, but I'm sure if I hit 
CW key down, that resistor would fry the rest of the way.

It seems odd that something on the "other" side of that resistor could 
be so drastically out of range to cause that .82 to pop...and yet,

it still works with perfect output...when it is working.

So, while the capacitor/diode bank probably needs updating, Am I to 
assume that is not the culprit at hand ...because the .82 is on the 
output side

of that entire assembly?

Changed tube, perhaps my antenna has some SWR....but the 30L1 has no 
issues...not even glowing plate...so it can't be that bad. Meter shows 
1.8:1 or thereabouts.

I have to do this while the iron is hot, or the 30L1 may just stay in 
place there for years!!!

.....Dave