[R-390] OT: 30L-1 transformer question

[KR4HV]

Have you actually measured the high voltage winding?  It may be a
misprint/typo.  Even if is not, it would probably work fine in the 30L1 (I
have one also)  The line voltage at my house is 245 not 230 so that is ~9.4%
higher.  Transformer would probably work Ok and you most likely wouldn't
notice the difference unless you were trying to squeeze out the last
possible watt.

Walt
KR4HV

-----Original Message-----
From: r-390-bounces at mailman.qth.net [mailto:r-390-bounces at mailman.qth.net]
On Behalf Of frankshughes at aim.com
Sent: Saturday, June 04, 2011 5:22 PM
To: r-390 at mailman.qth.net
Subject: [R-390] OT: 30L-1 transformer question



Hi,
This is a little off topic, however, the amplifier is used w/ the Collins
32S-3 transmitter, which
is connected via a relay to the "break-in" on my R-390A. (Close as I can get
to forum content.)


Hoping someone here might know about obscure Collins technology. 
(I'll try the Collins forum with this question too)


Anyway, I have a spare transformer for my Collins 30L-1. The transformer is
a custom winding done by  
PETER W. DAHL, now being sold by HARBACH ELECTRONICS.


The Harbach guys have no idea what the thing I have is wound for; "That was
something Pete made years ago"


Any guesses as to what situation is the lower voltage/current unit designed
to solve?


73
KJ4OLL


COLLINS 30L-1 ADVERTISED UNIT (standard transformer, for comparison)
CORE) EI-175 X 3" 29GA M6X STYLE #) 02 E-I LAMINATED CORE 
PR) 115/230 VAC 50/60 HZ 1 PH 
S1) 650 VAC 0.7A CCS 
S2) 120 VAC @ 0.020A CCS 
S3) 6.3 VCT @ 16A CCS 
DM) HT = 4.375 WT = 5.250 DT = 5.205 MD = 4.125 MW = 4.375 WEIGHT) 19 LBS  




COLLINS 30L-1-1 MODIFIED SEC 1 VOLTS & SEC 2 CURRENT (this is the custom
wound unit)
CORE) EI-175 X 3" 29GA M6X STYLE #) 02 E-I LAMINATED CORE 
PR) 115/230 VAC 50/60 HZ 1 PH 
S1) 550 VAC 0.7A CCS 
S2) 120 VAC @ 0.100A CCS 
S3) 6.3 VCT @ 16A CCS 
DM) HT = 4.375 WT = 5.250 DT = 5.205 MD = 4.125 MW = 4.375 WEIGHT) 19 LBS

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