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Re: Drake L-7


 

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Hi Francois,

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I did not document my changes and sold the amp a few years ago.

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I remember the green capacitor (B) but not (A). That could easily be a memory leakage on my side but I couldn’t find it on the pictures before the restauration. .

I don’t know the values of the (B) capacitor but replaced it with doorknob type (red).

The red wire to the capacitor is spark-plug wire.

On the attached picture you can see the new RF-choke was placed.

When I looked at the photo’s I made, I saw I did change the indicator assembly as well.

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Do you have the service manual of this amp?

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73, Evert

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From: [email protected] <[email protected]> On Behalf Of Fran?ois via groups.io
Sent: Sunday, 26 January 2025 06:08
To: [email protected]
Subject: Re: [ham-amplifiers] Drake L-7

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> The only thing I changed was the RF-choke and a replacement for the green pcb like 160m capacitor (by door knob types).

> I only opened it once a year to remove the just. That was all.

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Hello

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I am weak in technology (I am 75 years old). It seems to me that you are pointing out the two curious plate capacitors A = C41 (47 pF) and B = C42 (307 pF).

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Could you give me, precisely, the replacement capacitors that should be supplied. A url would be welcome.

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--

F1AMM

Fran?ois

De la part de Evert Bakker
贰苍惫辞测é?: samedi 25 janvier 2025 19:38

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