>Rich says:
>
>>Good engineering is often cheaper in the long run.
>
>You know that. I know that. Probably everyone here
>knows that. Now convince the bean counters who
>generally have more say about what goes on in
>industry........oh, and the 'pointy haired bosses '
>too.
>
>73
>
>Peter G3RZP
>
Consider that the price of a 25w rheostat is under $6. Filament/heater
voltage is critical to transmitting tubes. How many amplifiers use a
rheostat to control filament/heater voltage?.
>> ----------
>> From: measures[SMTP:2@vc.net]
>> Sent: 05 February 2001 13:18
>> To: Peter Chadwick; amps
>> Subject: RE: [AMPS] SB-220: Operate/Standby Switch
>>
>>
>> >Rich said:
>> >
>> >>What is needed is a Stepstart.
>> >
>> >
>> >I feel that this applies to more than the SB220, and is desirable on any
>> >amplifier above the 500 watt or so level. Having said that, the cost when
>> >you're building a commercial amplifier has to be considered, and it's
>> obviously
>> >cheaper to use a switch and sell spares.
>>
>> Appliance rocker switches come in two flavors. 1. for resistive loads
>> and 2. for surge current loads. I have some 15A rocker switches that are
>> rated at 43A surge.
>>
>> > If you amortize costs over the years, it may
>> >well be cheaper for the customer too. Hams can be very tight fisted.......
>> >
>> Good engineering is often cheaper in the long run.
>>
>> >But as an 'add on' to a commercial amp, or in a home brew amp, I'd argue
>that
>> >step start is very highly desirable. To the point where it can be
considered
>> >mandatory.
>> >
>> >73
>> >
>> >Peter G3RZP
>> >
>>
>>
>> - Rich..., 805.386.3734, www.vcnet.com/measures.
>> end
>>
>>
>> --
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>>
>
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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