jose

If it´s posible, I like blue

Spring is here....[emoji41]

good question

I measured all my BC556/546 BTA stock: hfe from 299 to 416 but the most abundant value is in the fork from 320 to 380. I don´t know whether to do it with these values. I have 100 BC546CTA bought in Mouser too and today I found a guy who bought him another 100 units of the BC556C ... I hope to be lucky.

I buy all my sand on Mouser and They say that for example On/Fairchild BC556BTA grade has a measure of HFE/450. I have around 200 eas on my warehouse I need some time for measure some units but I guess that they don't lie... or this I would like to believe. Edit: I'm seeing that I have some KSA992FTA/KSC1845FTA but yes, Pars is right; It's a shame they have different pinout.

Finally, can BTAs work?

John Pizzarelli trio "live at birdland"

I bought 35 of each one for this proyect. I like to have reserve inventory.

Happy Birthday!

Happy Birthday!

E.S.T "Seven Days of Falling"

Some model of Emission Labs maybe?

Happy birthday Steve!!!!!

Doing a spreadsheet is a great way to share information about the behavior of the amp. Thanks Pars

It may seem silly, but I prefer the usual Neutrik rca´s: simple, robust and of good quality at an appropriate price.

Chet Baker Sings

They have arrived;

happy birthday!!!!

I have a nice collection of Bach cello suites but probably it's on my top ten. Jean-Guihen Queyras

Manolo Garcia. "Arena en los bolsillos"

I'm not very good at this but seeing the scheme led 1 is directly powered by the diode bridge and and the negative side is connected to KPS92. I would look there first.

My amp module is ready. Now I'm working on a second Psu for the amp (dual-mono) and at the same time I work on the unbal/bal preamp (I have the PSU ready). I want to do a three module system.

sorry, 30Volt Edit : I´m using 6CA7

My BH starts with 30mVolt 30 volt and needs 15~30 minutes warm up. After, offset is arround 5 ~ -5mVolt.

If in the GG the servos work perfectly, in the BH it should work. However I think that the nature of the beast is that ... don´t use servos