[Amps] Blown anode choke in TL-922

[Carl]

I think he answered his own question Alex. A home brew choke without 
checking resonances would be my guess.
It takes very little deviation to shift that resonance which is almost 
always between 25-28MHz in that style choke. Its why Ameritron gave up on it 
and went to the sectional style which goes back to the National R-175 of the 
late 30's.

Carl
KM1H

----- Original Message ----- 
From: "Alek Petkovic" <vk6apk at bigpond.com>
To: "Alf Pousar" <alf.pousar at surffi.net>; <Amps at contesting.com>
Sent: Sunday, April 24, 2011 4:59 AM
Subject: Re: [Amps] Blown anode choke in TL-922


> In Isaac's original description, he described hearing a bang. That
> means that he had  'an event'.
>
> The browning of the wires of the plate choke is not consistent with
> the symptoms (bang) that Isaac described hearing.
>
> Something else caused that bang to be heard. A  bandswitch or tuning
> capacitor flashover A popping diode or capacitor or even the cw/ssb
> switch contacts.
>
> Isaac, there must be some damage, other than that plate choke that
> you have not uncovered yet.
>
> 73, Alek.
> VK6APK
>
>
>
>
> At 04:45 PM 24/04/2011, Alf Pousar wrote:
>>Hi Isaac,
>>I guess it's due to the fact you are running RTTY. The power
>>dissipation is a totally different ball  game for RTTY vs SSB.
>>Your working is similar to keydown for the entire qso during transmission.
>>This is orfcourse only my opinion.
>>
>>Happy easter,
>>Alf  OH2QM
>>_______________________________________________
>>Amps mailing list
>>Amps at contesting.com
>>http://lists.contesting.com/mailman/listinfo/amps
>>
>>
>>
>>
>>=======
>>Email scanned by PC Tools - No viruses or spyware found.
>>(Email Guard: 7.0.0.21, Virus/Spyware Database: 6.17360)
>>http://www.pctools.com/
>>=======
>
> From sunny Binningup, Western Australia
>
> http://www.qrz.com/db/vk6apk
> http://www.qrz.com/db/vk6ap
>
>
>
>
>
> =======
> Email scanned by PC Tools - No viruses or spyware found.
> (Email Guard: 7.0.0.21, Virus/Spyware Database: 6.17360)
> http://www.pctools.com/
> =======
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps