I've just bought 4 from W8JI at CTR Engineering. Installed one in
my AL-1500 and one in my home brew 2 x 3-500Z 160 to 10 amp. No
problems on any band with those chokes.
73, Alek VK6APK.
On 28/01/2025 8:06 am, Dave w6de wrote:
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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
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I
found the RF-choke I used :
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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
De
la part de
Evert Bakker
贰苍惫辞测é?: dimanche 26 janvier 2025 20:45