I have used much club stuff on it and it was vigorous, just referred to what I did stick there lately when I was re-testing. Here is the FFT I just took again BTW. Its with a 100K Black beauty pot at half way with 0dBu input. (65536 FFT 48K SR Blackman3 window no smoothing).
Attachments
Triode cathode followers is a mess but small signal pentodes is promising. Please Salas, whirl up the dudes to make a decent EF86 CF or something. We really need it.
Staffan
They are a mess only if you don't know how to implement them. The classic example is a 12AX7 as cathode follower in guitar amplifiers. When implemeted properly, they are indispensable at the output side of a line pre. EF86 in that role is unsuitable due to low anode current.
They are a mess only if you don't know how to implement them. The classic example is a 12AX7 as cathode follower in guitar amplifiers. When implemeted properly, they are indispensable at the output side of a line pre. EF86 in that role is unsuitable due to low anode current.
12AX7 indispensable at the output side of a line pre, hear hear. Give us the fax in fidelity plz.
Staffan
U understood me wrong! I said 12AX7=useless as a cathode follower! 😛
Do u still have a fax!!
Great bro. Subject was small signal CF and no gain tho. Drive carefully.
Staffan
Hi Salas,
It's nice preamp.
I really like 6V6's sound, especially GT with smoke glass. I have some questions for you:
- What is your latest version of schema ? in first page ?
- Did you compare sound quality between 6V6 and DHT, like 26, 31, 71A, 01A, 45... ?
- So far are you still listening this Pre ?
Tks,
QA.
It's nice preamp.
I really like 6V6's sound, especially GT with smoke glass. I have some questions for you:
- What is your latest version of schema ? in first page ?
- Did you compare sound quality between 6V6 and DHT, like 26, 31, 71A, 01A, 45... ?
- So far are you still listening this Pre ?
Tks,
QA.
-Its the same core circuit as in the links in first page. Can use 7.5K load and 300V B+ alternatively. Most use SSHV2 reg when making it these days and a light CLC before it.
-Not directly.
-Yes, quite enough.
-Not directly.
-Yes, quite enough.
I dug up some C3g and C3n. I love those little neaties when removing the cap. They are made for Deutche Post with aditional caps and high specs. Can make a nice follower with 250 on anode and 150 regulated on G2 maybe.

Then I also found some also lovely 6G6G that can be a candidate in the same setup as the 6V6 anode follower. Somewhat lower current but they have a lovely sound.

Staffan

Then I also found some also lovely 6G6G that can be a candidate in the same setup as the 6V6 anode follower. Somewhat lower current but they have a lovely sound.

Staffan
I've been reading the whole thread over the last couple of days, and I'm going to have a bash at building one of these.🙂
I recently built a preamp designed for a 2A3, with a 6V6 as the anode load. My version used a Russian 6S4S or a 6B4-g which is the 6.3v octal version.
This pre sounds really good, but suffers from a degree of self noise which is annoying.
My plan is to build a prototype on breadboard using an anode CCS for the 6V6 and a slightly modified PSU from the pre I've just built. That should give me a flavour of what it can do.
If all goes well then a PSU with two shunt regulators (one per channel) using an EL34 and an 0D3 will be built and a resistor load for the 6V6. I've got 95% of the bit's needed to build this, so I will start tomorrow and update here on how I'm progressing.
Happy new year to you all.😀
I recently built a preamp designed for a 2A3, with a 6V6 as the anode load. My version used a Russian 6S4S or a 6B4-g which is the 6.3v octal version.
This pre sounds really good, but suffers from a degree of self noise which is annoying.
My plan is to build a prototype on breadboard using an anode CCS for the 6V6 and a slightly modified PSU from the pre I've just built. That should give me a flavour of what it can do.
If all goes well then a PSU with two shunt regulators (one per channel) using an EL34 and an 0D3 will be built and a resistor load for the 6V6. I've got 95% of the bit's needed to build this, so I will start tomorrow and update here on how I'm progressing.
Happy new year to you all.😀
I'm using some of those brown caps (but 4uf) as coupling caps in my 2A3 type preamp, and also as the first cap after the rectifier in my PSU.🙂
to be honest, didnt expect them to sound like that ...
never thought also to use them in ps ..... nice idea 😉
never thought also to use them in ps ..... nice idea 😉
You are going full Russian bit by bit...Tubes, caps, good they don't sell any CCCP rocket NOS cabling on Ebay.😀 S NOVIM GODOM! Eh, Happy new year!😛
tchernov cables ... 😎
also Musical Wire - Home
and I a sure there will be others too .....
old military cables should be nice to try tho ...
*waiting for some american 6v6 too, will use us caps with them ... 😉
happy new year Nick
also Musical Wire - Home
and I a sure there will be others too .....
old military cables should be nice to try tho ...
*waiting for some american 6v6 too, will use us caps with them ... 😉
happy new year Nick
Plot is to set SSHV2 to 20 mA current limit and upping the bias a bit? What LL chokes are that?
My breadboard is on the kitchen table again. Prepping for 1660.
Staffan
My breadboard is on the kitchen table again. Prepping for 1660.
Staffan
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