Re: Drake L-7
开云体育Thanks Dave. Always “good” to hear the issues! In the L7 the RFC3 was ok (no issues in 15 years) ? 73, Evert ? / / ? From: [email protected] <[email protected]> On Behalf Of Dave w6de
Sent: Tuesday, 28 January 2025 01:06 To: [email protected] Subject: Re: [ham-amplifiers] Drake L-7 ? From my own experience in blowing up two of those, is that RFC3 RF-choke purchased from RF-Parts is resonant on 30 meters when used in a 3-tube (8874) Alpha 76A amplifier.? Use in other amplifiers may differ.? ? 73, Dave, w6de ? ? ? From: [email protected] <[email protected]> On Behalf Of Evert Bakker via groups.io ? I found the RF-choke I used : ?
? ? 73, Evert ? / / ? From: [email protected] <[email protected]> On Behalf Of Fran?ois via groups.io ? Hello, ? > Do you have the service manual of this amp? ** No, I don't have the service manual for this amp. If you could share it with me, it would be appreciated. ? > I remember the green capacitor (B) but not (A). ** Your capacitor 'A' went with your old RF choke. ? ? A= 47 pF B= 307 pF ? Thanks for the images of your modifications; they can be very useful to me -- F1AMM Fran?ois De la part de Evert Bakker |