In Reply to: RE: MQ OPTs for Tubelab SE 300b posted by jdrouin on July 27, 2015 at 09:30:26:
The RH-60 is a series feed transformer. The same coil is available for parafeed, where it handles zero direct current but has more inductance for deeper bass - assuming the parafeed choke has more inductance than the airgapped RH-60.
For parafeed, no changes to the circuit board are needed; you just have two pieces of iron and a parafeed capacitor that are mounted off the board. (A 3.3uF/630v capacitor would be a good choice.)
Power is about 8 watts - see the chart at the link.
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Follow Ups
- RE: MQ OPTs for Tubelab SE 300b - Paul Joppa 13:04:36 07/27/15 (2)
- RE: MQ OPTs for Tubelab SE 300b - braubeat 08:28:58 07/28/15 (1)
- RE: MQ OPTs for Tubelab SE 300b - braubeat 08:35:03 07/28/15 (0)