"DW Harms" <[EMAIL PROTECTED]> made an utterance to the drakelist gang ---------------------------------------------------------------------- Brian,
Dont start replacing the PA transistors before you have made sure it is not the mixer! I have seen that in quite a few TR7's! Replace it by a SRA3M-H or equivalent 13 dBm mixer and see what happens first. VY 73, Dick PA2DW -----Oorspronkelijk bericht----- Van: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Namens [EMAIL PROTECTED] Verzonden: vrijdag 27 april 2007 15:27 Aan: [email protected] Onderwerp: [drakelist] PA Transistors questions [EMAIL PROTECTED] made an utterance to the drakelist gang ---------------------------------------------------------------------- I have a TR7 with the wonderful "low power output especially on 10m (30w max)" problem. My father (WW4HX) and I have been researching and found the best solution is to replace the PA Transistors. Most places seem to refer back to either the Drakelist's Drakemods section or Floyd Sense's (K8AC) article but both suggest different sets of transistors with the exception of the predriver which they suggest the MRF476/2SC2166 (which is another question.. are these direct replacements of each other or do we need to gt the MRF476). This was my great-grandfathers (Rudy Gibbs, W4HX) last rig before he became a SK so we am trying to keep it as original as possible. Any guidance the list can give would be greatly appreciated. Thanks, Brian KD4UYP ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ---------------------------------------------------------------------- ---------------------------------------------------------------------- Submissions: [email protected] Unsubscribe: [EMAIL PROTECTED] - unsubscribe drakelist in body Hopelessly Lost: [EMAIL PROTECTED] - help in body of message Zerobeat Web Page: www.zerobeat.net - sponsored by www.tlchost.net ----------------------------------------------------------------------
