The PHILCO Phorum

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Have a RP3. Recapped, replaced resistors, and installed a new crystal cartridge. Still will only broadcast about 2ft. no more. Checked tubes, strong. am I missing something?
I would suspect that many people have no idea what an RP3 is (I once worked on a Sonora RP3). Maybe if you told us a little more about it - picture?

https://www.radiomuseum.org/r/philco_rp3.html
It's a Philco wireless 1939 record player.
What kind of ant. are you using?
one used in the original factory design.
Really bro???
So how much ac voltage do you have from pin 2 of the 84 to chassis and pin 3 to the chassis?
So you have a 6A7 doing its thing ( it is normally a osc/mixer in a receiver).

What is your plate voltage? Have you looked at it with a scope, how about a signal sniffer. I would suspect that a really good 6A7 might be required to get good range, not my favorite tube - still trying to get the Strat to osc. on band 5, reliably.
105.1 v pin 2 and 105.4 pin 3
plate on the 6A7 is 101.5v
Is that 1 meg variable resistor good? What happens when you adjust it?
yes. it shuts down the transmitting when turned be it on a little over 2 ft.
I would think that it would vary the RF output considerably through the range, 0 to 1meg. So if you measure from the high side (xtal) to ground you get 1 meg.? I have to ask - again, because these Philco controls are often the problem, especially if they have been "cleaned".

It may also vary the output freq. a little. What is you output freq?
6A7 tubes are often weak. The Mixing part.
Maybe it just needs replacement.
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