[BC] HT-10 single phase choke needed

[John Lyles]

For ripple reduction in a single phase power supply, with choke input 
filter, a single choke with L that low is marginal. It is the value that 
would be typical for a 3 phase supply, where the ripple freq is 360 Hz, 
not 120 Hz. A lot depends on the shunt capacitor in the filter, and 
cranking that value up in uF will compromise some, but create a lot of 
stored energy to deal with in the design.

While NWL is a good source for iron, Harris/Gates was prone to buy 
theirs from Basler Electric east of St Louis in Highland, IL, as the 
shipping costs were lower. NWL provided iron components to companies 
such as RCA and CCA nearby in NJ.

John Lyles

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Message: 7
From: richardbrianjohnson at verizon.net

NWL makes transformers and inductors. They probably made the ones in 
your transmitter. Give them a call
http://www.nwl.com/contents/view/9
   Cheers,
Richard B. Johnson