[AMPS] Purchase Recommendation?

[Rich Measures]

>
>>What's all this about parasitic oscillation, etc, with the SB-220 and do I
>>really need to worry about it?? Any other things I need to ask the current
>>owner if I find one I'm interested in?
>
>Horsepucky.  

€  ______

>If the amplifier is working, don't mess with it.  If it 
>ain't broke; don't fix it!
>
€  To evaluate parasitic history, measure the resistance of the parasitic 
suppressor resistors.  
>>
>>Do I need to worry about whether the ALC is compatible with my rig, or do I
>>just throttle back the output power so as to never overdrive the amp? The
>>FT-920 has a menu setting where I can limit max output power to anything
>>between 10 and 100 watts.
>>
>ALC is likely compatible.  However, if you set your rigs max output for 
>whatever is the max input of the amp, you shouldn't need ALC since that's 
>what it does.
>
>>Rich pointed out that since my FT-920 has fast T/R switching, that I *do*
>>need to take the QSK capabilities of the amplifier into consideration. It's
>>my understanding that QSK really only applies to full break-in CW - I
>>generally operate phone and RTTY only so won't be doing a lot of rapid
>>switching betwen tx and rx. So do I really need to worry about QSK or not?
>
>IMHO, I wouldn't worry about it.  Some say that with the TX speed of 
>modern rigs, you need it so you don't hot switch.  However, when you key 
>down with SSB you don't generally start talking in a couple of 
>milliseconds.  

€ People who use VOX are talking, Jon.  People who use PTT transmit the 
sound of pressing the switch.  

> Again, I wouldn't worry about it and.......

€  What, me worry!



Rich...

R. L. Measures, 805-386-3734, AG6K, www.vcnet.com/measures  


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