[BC] Collins 20V Reactor

[miltron at mindspring.com]

Most good motor/transformer shops can rewind these. A choke should be easy 
for them; one here successfully rewound the modulation xfmr for a 
BTA-5T.........
M
----- Original Message ----- 
From: <RichardBJohnson at comcast.net>
To: "Broadcasters' Mailing List" <broadcast at radiolists.net>
Cc: "Tom" <Radiofreetom at gmail.com>
Sent: Wednesday, October 24, 2007 8:16 AM
Subject: Re: [BC] Collins 20V Reactor


> In the meantime, you borrow a pole-peg from your local electrical company
> and "install" in on the floor behind your transmitter. Hook it up with 
> GTO-15
> wire that you can get from any electrical supply shop. You use its 
> secondary
> in place of the modulation reactor. Modern pole-pegs have one side of
> their primaries connected to the can so you need to set it on a sheet of 
> plywood
> and connect the can to the B+ side, with the HV insulator to the modulated 
> side.
>
> Remind oneself that the whole thing is at a lethal potential. This will
> keep the transmitter on-the-air until a new reactor can be built.
>
> At a radio station old enough to have a transmitter with a modulation
> reactor, there are probably other things hanging around that will work
> for a temporary reactor as well. A spare plate transformer comes
> to mind.
>
> For those who don't like scary lash ups, you can always obtain
> the modulated B+ directly from one plate of the modulator stage. This
> should give you 65 to 90 percent modulation capability with low
> distortion. You leave the secondary of the modulation transformer
> unconnected.
>
>
> --
> Cheers,
> Richard B. Johnson
> Read about my book
> http://www.LymanSchool.org
>
>
> -------------- Original message ----------------------
> From: Tom <Radiofreetom at gmail.com>
>> I believe he said they were on a six-eight week backorder...
>>
>> Tom S.
>>
>> RichardBJohnson at comcast.net wrote:
>> >Why don't you have Peter repair or build you one?
>> >
>> >http://www.pwdahl.com/front%20entrance.htm
>> >
>>
>>
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