[Amps] New Amplifier

[Jeff AC0C]

This is the quandary of the solid state amp.  The part can be blasted in 
such a small time that there is a premium on the speed and thresholds of the 
protection circuitry - too little or too late and, well, it's part swapping 
time.  Solid state is reliable if the limits are not exceeded and that means 
even for what can be amazingly small periods of time.  A tube by comparison 
can generally be abused for a relatively long period of time and not suffer 
damage which is one of the reasons that I think tubes stick around - they 
are like that 350 chev - it's not the latest and greatest but it's known, 
it's rugged and you can fix it if it breaks.

73/jeff/ac0c
www.ac0c.com
alpha-charlie-zero-charlie

-----Original Message----- 
From: Bill Turner
Sent: Monday, April 10, 2017 4:23 PM
To: Amps group
Subject: Re: [Amps] New Amplifier

------------ ORIGINAL MESSAGE ------------(may be snipped)

On Mon, 10 Apr 2017 16:17:13 +0000 (UTC), Catherine wrote:

>
>I've lost track of the number of times I've had to replace the IRF510 
>MOSFETs in my HFPacker 35 watt amp.  This is a good little amp, but it eats 
>IRF510 transistors for breakfast. It is Class A, with two devices in 
>parallel.

REPLY:

Did you miss where I said "when not abused"?

I'm sure you are not personally abusing them, but something in the
environment is and they are clearly not being properly protected.

When you handle them, do you have an anti-static mat and wear a ground
wrist strap?

73, Bill W6WRT
_______________________________________________
Amps mailing list
Amps at contesting.com
http://lists.contesting.com/mailman/listinfo/amps