[Boatanchors] AC Line Voltage Regulation

[Jay Coward]

Is SOLA still around? I have a nice black wrinkle enclosure with a 40V AC SOLA and cap with a variac on the output. It gives me 0-40 V AC. I got it at a flea market for $8. It's fused, switched,has on indicator and binding post output. Chrome handles too! It's great as a variable filament supply (but also serves well in the HO train world).
 Jay



-----Original Message-----
From: rbethman <rbethman at comcast.net>
To: boatanchors <boatanchors at mailman.qth.net>
Sent: Sun, Nov 18, 2012 12:32 pm
Subject: Re: [Boatanchors] AC Line Voltage Regulation


Normally, if one is NOT concerned with cost, my suggestion would be to 
btain a SOLA constant voltage transformer.
They are indeed pricey!  However, yhat solution would provide just what 
ou are looking for.
Here in Virginia, we run from 122VAC to 127VAC.
The bucking transformer methodology works just fine for the old 
oatanchors that were designed for 110VAC or 120VAC.
Bob - N0DGN
On 11/18/2012 3:23 PM, Jerry wrote:
 I changed the subject title as it may have been misleading.  I live in a
 rural part of Connecticut and my line voltage varies from 114 vac on some
 days to 129 vac on others ... it is fairly steady on any particular day.  I
 have used my heavy duty Variacs but would prefer something that doesn't need
 daily adjustments.  Complaining to the power company has not helped.

   Someone mentioned that the BAMA article was thyristor-based not just a
 bucking xfrmr and offered some regulation besides reduction.  I was thinking
 of an AC constant 115 vac regulator system capable of handling several of my
 boatanchors (eg 10A) using TRIAC's but I have read that the output waveform
 is distorted, maybe MOSFETs and SPWM?   Has anyone needed or bothered to go
 to such an elaborate setup?

 TIA,
 Jerry
 K1JOS

______________________________________________________________
oatanchors mailing list
ome: http://mailman.qth.net/mailman/listinfo/boatanchors
elp: http://mailman.qth.net/mmfaq.htm
ost: mailto:Boatanchors at mailman.qth.net
List Administrator: Duane Fischer, W8DBF
* For Assistance: dfischer at usol.com ** 

his list hosted by: http://www.qsl.net
lease help support this email list: http://www.qsl.net/donate.html