I've been playing with my ARR-41  receiver trying to figure out how to use it in a "Transceive" mode similar to what I did with the R-390A. (see link below) The plan would be to use the the main  ARR-41 "VFO" that covers 2.5 to 3.5 Mhz. I would use this signal as a drive signal for the transmitter converter.    How ever this signal (2.5 to 3.5) is very weak around  .1 ( point one) Volt PP and any additional load on this signal degrades my input into the 1st IF and reduces receiver sensitivity.
 I need a couple of volts PP and would like to stick with a fairly simple  converter using a doubler, a osc/ mixer, and a 6CL6 stage  - - - then use the output to drive another transmitter oscillator stage  or operate QRP with a couple of watts.
Any suggestons?
 
http://k4che.com/R390trans/R390Trans.htm
k4che