|[AMRadio] 32V-2 speech amp question|
brett.gazdzinski at verizonbusiness.com
Mon Jan 23 19:18:33 EST 2006
I drilled many a hole in the past, and even took rigs apart to use
for parts, back when people were giving them away ($50.00 for
a 32v3, $200.00 for a 30k1, $10.00 for a dx100, etc.
But no more, I build my own and do not ruin vintage stuff now.
Restoring something is a good idea for those who want to
play with the old stuff I guess.
> -----Original Message-----
> From: amradio-bounces at mailman.qth.net
> [mailto:amradio-bounces at mailman.qth.net] On Behalf Of John E.
> Coleman (ARS WA5BXO)
> Sent: Monday, January 23, 2006 4:57 PM
> To: 'Discussion of AM Radio'
> Subject: RE: [AMRadio] 32V-2 speech amp question
> Well I didn't intend to open a bucket of worms here and
> I certainly
> do not want to stop anyone that wants to experiment from
> doing so. Building
> a rig that has really good HIFI is a real challenge and doing
> it with out
> phase shifts in the audio is a point of mine. Building the
> rig to produce
> very low frequencies but not using those frequencies is about
> the only way
> you can prevent phase shifts in the lower frequency
> components. Because as
> you approach a roll off there is a phase shift that occurs at
> the knee of
> the curve. This phase shift at the low frequency end will
> alter the shape
> of a complex wave that is non sinusoidal and has natural even
> (natural asymmetry). So for this reason I lean toward
> building the rig for
> extended low frequency response but not necessarily producing them in
> transmission. Beside that, I think experimentation is good
> for the brain.
> I don't much care for have a piece of equipment to maintain
> as antique.
> They are all for my learning experience. And I may drill a
> hole in the
> front panel of anything. HIHI
> I only wanted to point out what I have found to be true
> in operating
> it and receiving others. There is a time and place for all.
> John, WA5BXO
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