F5 with 2sj162 2sk1058 ?

[juma]

Shunt reg still needs a cap at its output and that kind of shunt reg (40mA into the load means burning at least 60mA total) can't be made without certain amount of complexity if you want it to work nicely and the sonic benefit stays questionable. Anyway, give it a go, you might like it...

 

[indra1]

All righty, thanks.
Cheers

 

[bluevas]

Hello guys,

How about this links? Megalith02_en - Cooltune DIY Audio

Regards,

Josh

 

[BigE]

Use the Ohm's Law - if your JFETs work at Id of, say, 5mA and you need 2V of Vgs to bias the LATFETs at about 1A you'll need JFETs' drain resistors to be around 400 R (use 1k multi-turn pots and omit LATFETs' Rs, NTC and the rest of parts HEXFETs need for thermal compensation). Since LATFETs have lower parasitic capacitance meaning that they need less gate drive than HEXFETs it would be beneficial to use GR grade JFETs (lower ID) since that way their drain resistors will be higher and the OLG won't drop (maybe a little since the GR grade parts have lower gm).

This is an intriguing idea!

Remove the 1K resistor and 5K pot, replace with the 1K pot?

Then removing R11/12, TH1/2 and the paralleled 1 ohm source resistors?

What of the MUR diodes?