Babelfish XA252 / Babelfish XA252 SIT / Babelfish XA252 SET
- Thread starter Zen Mod
- Start date
Hi,
I know nothing about amp, but I find seductive the idea of emulating these NLA SIC transistors with avialable parts for poor papys.
Is it stable till 3 ohms load ?
I have a stupid question I'm sure : is is possible with the complementary version to make instead a ciclotron layout with the same power transistor for M2 and M3 (on the shematic) still to have the watts but being closer of a class A ?
Could be my first Papa / ZM (aka Batman / Robin amp gang
) diy amp...
I know nothing about amp, but I find seductive the idea of emulating these NLA SIC transistors with avialable parts for poor papys.
Is it stable till 3 ohms load ?
I have a stupid question I'm sure : is is possible with the complementary version to make instead a ciclotron layout with the same power transistor for M2 and M3 (on the shematic) still to have the watts but being closer of a class A ?
Could be my first Papa / ZM (aka Batman / Robin amp gang
) diy amp...
Hi,
I know nothing about amp, but I find seductive the idea of emulating these NLA SIC transistors with avialable parts for poor papys.
Is it stable till 3 ohms load ?
I have a stupid question I'm sure : is is possible with the complementary version to make instead a ciclotron layout with the same power transistor for M2 and M3 (on the shematic) still to have the watts but being closer of a class A ?
Could be my first Papa / ZM (aka Batman / Robin amp gang
stable with any load, as long you are taking in account that party-breaker is acting around 10A of current through OS
that's role of two optocouplers and triak - to clamp/kill biasing of OS when set current is achieved
circuit in question xeroxed from Papa's Real McKay
now, clarify your question about circlotron ?
I'm not following you there ....
and, this amp is ( as all amps with OS arranged in Square Law) having extraordinary deep A Class
for instance - Babelfish M25 , which is Square Law iteration of beloved FW M2 ..... both B. M25 and FW M2 are having full A Class envelope @8R load - around 25W (limited with rails, not Iq)
now, M2 is [email protected]4R jobbie, but "only" 12W5 of that being in Class A ......... and B. M25 is having same max power @4R, but 40W of those being still in Class A (both OS parts still conducting)
same behavior here
After reading the sound Guide design of Pa's amps, we definitly need one for yours.
At least the XA 252 which looks to be a garou but vamp emulated seems fine with non high efficenty starving loudspeakers. I was thinking 2 years ago to a BA3 because of something between the FW F5 control and a J2 more SET character (from reading as having heard none)
At least the XA 252 which looks to be a garou but vamp emulated seems fine with non high efficenty starving loudspeakers. I was thinking 2 years ago to a BA3 because of something between the FW F5 control and a J2 more SET character (from reading as having heard none)
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