Re: [Repeater-Builder] Syntors at the salvage yard. Drive level to the 45 watt VHF PA?

On Thu, 5 Feb 2009, skipp025 wrote: So... can anyone quickly tell me the drive level? IIRC, it's somewhere between 200 mW and 1.125W. +33dBm I think. The last stage of the exciter sets the power out for the radio, just like the Mitrek. A 45W PA can be turned down to 25W to run for the end of

RE: [Repeater-Builder] Syntors at the salvage yard. Drive level to the 45 watt VHF PA?

Skipp, Your VHF Syntor is the 40 watt model. The 2511 transistor at Q802 was used only in the HLD4125A power amplifier. According to the Syntor manual 6881043E40 (still available for about $21), the variable-output exciter supplies 1.5 watts maximum drive to the PA. Some components in the PA