[Amps] Band switch

[Jim Barber]

Neither did the 3KA.

73,
Jim N7CXI

On 12/11/2010 3:55 PM, Roger (K8RI) wrote:
>
>
> On 12/11/2010 1:20 PM, DJ7WW wrote:
>> As far I know all Henry amps made use of roller inductors
> The 2K4 didn't.
>
> 73
>
> Roger (K8RI)
>> 73
>> Peter
>>
>> -----Original Message-----
>> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
>> Behalf Of Dennis OConnor
>> Sent: Samstag, 11. Dezember 2010 18:47
>> To: amps at contesting.com
>> Subject: Re: [Amps] Band switch
>>
>> Hsu, those multi deck band switches bring hot RF carrying wires from the
>> hi-power tank circuits, close together which is not desirable... Yes, I
>> understand that it has been done that way from the early days of ham radio,
>> but it is still a poor way electrically...
>>
>> As far as the switch you show, from the pictures it looks like it is well
>> made from quality materials..
>>
>> Let me make a suggestion that you take a look at how Henry Radio handled the
>> RF switching on the tank circuit on their remote tune 3/4/5/8 K series of
>> amps...  The band switch for the tank coils would be a single pole, 6
>> position switch, that pulls in relays elsewhere in the tank (grid)
>> compartment...Henry hand made their own high current (and high voltage
>> bypass on the plate supply RF choke) relays using linear pull, AC solenoids
>> and adding the RF contacts onto the solenoid rod...
>>
>>
>> denny / k8do
>>
>>
>>
>>
>>
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
>> _______________________________________________
>> Amps mailing list
>> Amps at contesting.com
>> http://lists.contesting.com/mailman/listinfo/amps
>>
> _______________________________________________
> Amps mailing list
> Amps at contesting.com
> http://lists.contesting.com/mailman/listinfo/amps
>