>
>1-01-07 07.26, skrev measures på 2@vc.net följande:
>
>>
>>>
>>> Rich- you are just proving my point- no matter what the problem is, all
you a
>>> have is a sarcastic quip that has little to do with the real subject-
>>> So- Whats your point, and what does the Cap you mentioned have to do with
>>> the power switch failure?
>>>
>> The self-recognized amplifier "expert" supposed that the HV RF bypass cap
>> is part of the 120Hz ripple filter. Do you agree? My guess is that he
>> does not know how much inrush current passes through the switch. Leaving
>> out a stepstart is not good engineering practice. Neither is a 1000pF hv
>> bypass for a 160m amplifier.
>>
>> cheers, Bill
>>>
>>> At 09:18 AM 1/6/01 -0800, you wrote:
>>>>>
>>>>>
>>>>> Steve, and all-
>>>>> I am sorry- mine was an inappropriate 'knee-jerk' response to Rich's
>>>>> frequent , similar, answers to anything found wrong with an MFJ product.
>>>>>
>>>> I mentioned that Heath's SB-220 and Kenwood's TL-922 have the same
>>>> problem. I have spoken with numerous 922 owners who have a welded on/off
>>>> switch, who turn their 922s off and on by plugging the power cord in.
>>>>
>>>>> You are right- I should NOT have put it on the list. I will try to
>>>>> contain myself more, in the future.
>>>>>
>>>>> Sorry- Bill- W4BSG ( and- I really hope you can find a good replacement
>>>>> switch.)
>>>>>
>>>>> At 08:20 AM 1/6/01 -0400, you wrote:
>>>>>
>>>>> At 07:06 PM 1/5/01 -0600, you wrote:
>>>>>
>>>>> I am making bet with myself on how long until Measures assures us it is
>>>>> just another failure from a VHF parasitic, caused by too much Georgia and
>>>>> Mississippi Clay.
>>>>>
>>>>> Bill-W4BSG
>>>>>
>>>> Bill -- do you feel that the 1000pF B+ bypass is part of the 120Hz ripple
>>>> filter?
>>>>
>>>>> Hi Bill,
>>>>>
>>>>> I do not see why you bothered to reply to my question is such an
>> nappropriate
>>>>> way. This forum is not for personal digs. I believe that you owe everyone
>>>>> that is subscribed here an apology.
>>>>>
>>>>> /s/ Steve, N2CKH
>>>>>
>>>>> http://www.qsl.net/n2ckh
>>>>>
>>>>>
>>>>> --
>>>>> FAQ on WWW: http://www.contesting.com/FAQ/amps
>>>>> Submissions: amps@contesting.com
>>>>> Administrative requests: amps-REQUEST@contesting.com
>>>>> Problems: owner-amps@contesting.com
>>>>>
>>>>>
>>>>> -
>>>>> Bill Aycock --- Persimmon Hill
>>>>> Woodville, Alabama, US 35776
>>>>> (in the N.E. corner of the State)
>>>>> W4BSG -- Grid EM64vr
>>>>> baycock@HiWAAY.net
>>>>> w4bsg@arrl.net
>>>>>
>>>>> --
>>>>> FAQ on WWW: http://www.contesting.com/FAQ/amps
>>>>> Submissions: amps@contesting.com
>>>>> Administrative requests: amps-REQUEST@contesting.com
>>>>> Problems: owner-amps@contesting.com
>>>>>
>>>>>
>>>>
>>>>
>>>> - Rich..., 805.386.3734, www.vcnet.com/measures.
>>>> end
>>>>
>>>>
>>> -
>>> Bill Aycock --- Persimmon Hill
>>> Woodville, Alabama, US 35776
>>> (in the N.E. corner of the State)
>>> W4BSG -- Grid EM64vr
>>> baycock@HiWAAY.net
>>> w4bsg@arrl.net
>>>
>>
>>
>> - Rich..., 805.386.3734, www.vcnet.com/measures.
>> end
>>
>>
>> --
>> FAQ on WWW: http://www.contesting.com/FAQ/amps
>> Submissions: amps@contesting.com
>> Administrative requests: amps-REQUEST@contesting.com
>> Problems: owner-amps@contesting.com
>>
>>
>No Rich, using disc capacitors in power supplies is no joke. Disc capacitors
>across hi voltage diodes + rf chokes in series and decoupling the mains
>lead is to keep rf out of the diodes. Noise generated by the diodes
>modulate the final and one gets wide band noise around the transmitted
>signal. This goes also for switched power supplies. On 2 meters and
>listening at a distance of a few kilometers there is a lot of garbage using
>a IC 706 + a switched mode PS35.
>Driving a linear and using a high gain beam makes the situation even worse
--
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