[Amps] 374A will not turn on ??? Suggestions?

[chas]

On 10/12/11 11:32 AM, Louis Parascondola wrote:
> You need to check the step start resistor(s), they go on that unit
> normally. They are buried underneath by the fan.  If one is open (which
> usually happens) the amp will be dead. Lou
> 

Lou
what causes the resistor(s) to go bad?  is it the surging like turning on and
off an incandescent light bulb?  iow, how often is this going to be a
replaceable component? replace annually if used daily or twice daily?

RL Howard did do the update/upgrade of this amp in 2009. since then, the
owner used it about 50 times.  I then acquired it last month or in August and
have used it on average, about 4 times a week.  All of this was in MARS
service.  We have no idea whether RL replaced this circuitry or any of its
components.  Probably not.

Any thoughts?

thanks es 73

chas  k5dam