If you need REAL STUFF look out for one of those big Swedish rollers used in
STANDARD RADIOs ship transmitters. New international rules send many of
them to junk or to the bottom of the big oceans. Still, there are a few
still around. Compared with these rollers , the ones used in the amateur
world are just toys. I once owned the piL ouput filter from one the QUEEN
ELISABETHs model CT 1000 transmitters and it was just beautiful. BIG rollers
and BIG Jennings vacuum caps. Good for at least 5-7 kilowatts in ham
service, I guess. The power supplies ran on 3-phase with big c-core
transformers. Maybe some commercial ship repairshop still has one of them
for give-away price?
There were many of those rollers in other ship transmitter models made by
the same firm once owned by ITT.
de Hans
----------
>Från: "Tom Rauch" <w8ji@contesting.com>
>Till: amps@contesting.com
>Ämne: Re: [AMPS] rollers
>Datum: fre 3 mar 2000 19.27
>
>
>> >To cure the problem, he needs to switch to a large gauge
>> >conductor in the rollers.
>> I'd be interested in your comments regarding the Palstar roller (5Kw+ &
>> $225.00 US) which they sell separately as well as incorporating in their
>> 4Kw tuner?
>
>Never saw one.
>
>How much inductance?
>
>Is the coil silver plated? The shaft? The roller and the roller wiper?
>
>What size is it?
>73, Tom W8JI
>w8ji@contesting.com
>
>--
>FAQ on WWW: http://www.contesting.com/ampsfaq.html
>Submissions: amps@contesting.com
>Administrative requests: amps-REQUEST@contesting.com
>Problems: owner-amps@contesting.com
>Search: http://www.contesting.com/km9p/search.htm
>
>
--
FAQ on WWW: http://www.contesting.com/ampsfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm
|