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6C10 Tube


 

Help!? I am looking for a 6C10 tube.
73,
Bill, WA2DVUCape May, NJ


 

I’m curious: which Tek scope used compactrons?

Cheers
Tom
Sent from an iThing; please forgive the typos and brevity

On May 4, 2024, at 11:23, Bill Riches via groups.io <bill.riches@...> wrote:

?Help! I am looking for a 6C10 tube.
73,
Bill, WA2DVUCape May, NJ


 

I don't know which scope used compactrons. I do know a cal fixture sort of did.
From my notes:

Tektronix 067-0502-01 Amplitude Calibrator.

The voltage regulator originally used the 6GE8/7734
signal pentode/power triode, but later switched to the 6G11
signal pentode/beam power tube, triode-connected in a purpose-built adaptor.

Besides the 12BU pinout (6AL11 and 6G11) the adaptor is made for,
the 12EZ tubes (6AD10 6BF11 6BY11 6T10) can probably work,
with a new adaptor.

Dave Wise
________________________________
From: [email protected] <[email protected]> on behalf of Tom Lee <tomlee@...>
Sent: Saturday, May 4, 2024 12:24 PM
To: [email protected] <[email protected]>
Subject: Re: [TekScopes] 6C10 Tube

I’m curious: which Tek scope used compactrons?

Cheers
Tom
Sent from an iThing; please forgive the typos and brevity

On May 4, 2024, at 11:23, Bill Riches via groups.io <bill.riches@...> wrote:

?Help! I am looking for a 6C10 tube.
73,
Bill, WA2DVUCape May, NJ


 

Thank you, Dave. I’m wondering whether that 6C10 was used in a production instrument or an in-house fixture. I just checked the web and it commands crazy prices on eBay. Audiophiles have clearly fallen in love with its triple-triode sonic magic.

Tom


Sent from an iThing; please forgive the typos and brevity

On May 4, 2024, at 12:58, Dave Wise <d44617665@...> wrote:

?I don't know which scope used compactrons. I do know a cal fixture sort of did.
From my notes:

Tektronix 067-0502-01 Amplitude Calibrator.

The voltage regulator originally used the 6GE8/7734
signal pentode/power triode, but later switched to the 6G11
signal pentode/beam power tube, triode-connected in a purpose-built adaptor.

Besides the 12BU pinout (6AL11 and 6G11) the adaptor is made for,
the 12EZ tubes (6AD10 6BF11 6BY11 6T10) can probably work,
with a new adaptor.

Dave Wise
________________________________
From: [email protected] <[email protected]> on behalf of Tom Lee <tomlee@...>
Sent: Saturday, May 4, 2024 12:24 PM
To: [email protected] <[email protected]>
Subject: Re: [TekScopes] 6C10 Tube

I’m curious: which Tek scope used compactrons?

Cheers
Tom
Sent from an iThing; please forgive the typos and brevity

On May 4, 2024, at 11:23, Bill Riches via groups.io <bill.riches@...> wrote:

?Help! I am looking for a 6C10 tube.
73,
Bill, WA2DVUCape May, NJ









 

On 5/4/2024 1:11 PM, Tom Lee wrote:
Audiophiles have clearly fallen in love with its triple-triode sonic magic.
It's used in some Fender Guitar Amps, which explains the prices asked.

Dan


 

On Sun, May 5, 2024 at 05:24 AM, Tom Lee wrote:


I’m curious: which Tek scope used compactrons?
The 556 is the only one I've experience of but I can't remember which tube it uses.


 

6M11 triode-dual pentode, in V574, V774, and V1605.
6GF5 beam power tube, in V1300 and V1350.

Dave Wise
________________________________
From: [email protected] <[email protected]> on behalf of Morris Odell <vilgotch1@...>
Sent: Saturday, May 4, 2024 3:16 PM
To: [email protected] <[email protected]>
Subject: Re: [TekScopes] 6C10 Tube

On Sun, May 5, 2024 at 05:24 AM, Tom Lee wrote:


I’m curious: which Tek scope used compactrons?
The 556 is the only one I've experience of but I can't remember which tube it uses.


 

I love the knowledge of this group's denizens. Thank you, Dave.

-- Tom

--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070

On 5/4/2024 3:36 PM, Dave Wise wrote:
6M11 triode-dual pentode, in V574, V774, and V1605.
6GF5 beam power tube, in V1300 and V1350.

Dave Wise
________________________________
From: [email protected] <[email protected]> on behalf of Morris Odell <vilgotch1@...>
Sent: Saturday, May 4, 2024 3:16 PM
To: [email protected] <[email protected]>
Subject: Re: [TekScopes] 6C10 Tube

On Sun, May 5, 2024 at 05:24 AM, Tom Lee wrote:

I’m curious: which Tek scope used compactrons?
The 556 is the only one I've experience of but I can't remember which tube it uses.


 

You're welcome, Tom, but I can't claim knowledge here, I just looked it up in the manual. I am pretty good at that. ?

Dave Wise
________________________________
From: [email protected] <[email protected]> on behalf of Tom Lee <tomlee@...>
Sent: Saturday, May 4, 2024 3:38 PM
To: [email protected] <[email protected]>
Subject: Re: [TekScopes] 6C10 Tube

I love the knowledge of this group's denizens. Thank you, Dave.

-- Tom

--
Prof. Thomas H. Lee
Allen Ctr., Rm. 205
420 Via Palou Mall
Stanford University
Stanford, CA 94305-4070


On 5/4/2024 3:36 PM, Dave Wise wrote:
6M11 triode-dual pentode, in V574, V774, and V1605.
6GF5 beam power tube, in V1300 and V1350.

Dave Wise
________________________________
From: [email protected] <[email protected]> on behalf of Morris Odell <vilgotch1@...>
Sent: Saturday, May 4, 2024 3:16 PM
To: [email protected] <[email protected]>
Subject: Re: [TekScopes] 6C10 Tube

On Sun, May 5, 2024 at 05:24 AM, Tom Lee wrote:

I’m curious: which Tek scope used compactrons?
The 556 is the only one I've experience of but I can't remember which tube it uses.


 

On Sat, May 4, 2024 at 05:16 PM, Morris Odell wrote:

The 556 is the only one I've experience of but I can't remember which tube it uses.
From TekWiki: The 6M11, a pentode/dual triode, used only in the 556

--
Jim Adney
Madison, WI USA


 

6C10s are three 12AX7 sections in one envelope. For many applications, the 6AC10 will work fine, it's three 12AU7 sections in one envelope. Not only do the AudioPhools like them, guitar amplifier builders are smitten too, and many hifi amplifiers and tuners use them. Compactrons were a last ditch effort to reduce vacuum tube overall cost and size, and buy time for developing solid state equipment. For this reason, they tend to be more rugged and longer lasting so people won't be? so annoyed at replacing them when only one section has failed.

?? Bruce Gentry, KA2IVY

On 5/4/24 16:11, Tom Lee wrote:
Thank you, Dave. I’m wondering whether that 6C10 was used in a production instrument or an in-house fixture. I just checked the web and it commands crazy prices on eBay. Audiophiles have clearly fallen in love with its triple-triode sonic magic.

Tom


Sent from an iThing; please forgive the typos and brevity

On May 4, 2024, at 12:58, Dave Wise <d44617665@...> wrote:

?I don't know which scope used compactrons. I do know a cal fixture sort of did.
From my notes:

Tektronix 067-0502-01 Amplitude Calibrator.

The voltage regulator originally used the 6GE8/7734
signal pentode/power triode, but later switched to the 6G11
signal pentode/beam power tube, triode-connected in a purpose-built adaptor.

Besides the 12BU pinout (6AL11 and 6G11) the adaptor is made for,
the 12EZ tubes (6AD10 6BF11 6BY11 6T10) can probably work,
with a new adaptor.

Dave Wise
________________________________
From: [email protected] <[email protected]> on behalf of Tom Lee <tomlee@...>
Sent: Saturday, May 4, 2024 12:24 PM
To: [email protected] <[email protected]>
Subject: Re: [TekScopes] 6C10 Tube

I’m curious: which Tek scope used compactrons?

Cheers
Tom
Sent from an iThing; please forgive the typos and brevity

On May 4, 2024, at 11:23, Bill Riches via groups.io <bill.riches@...> wrote:

?Help! I am looking for a 6C10 tube.
73,
Bill, WA2DVUCape May, NJ









 

The 6AC10 has an amplification factor of 62 for each section (like a 12AT7). The 6C10 is 100, as you pointed out, like a 12AX7.

They work perfectly in a Heath HO-10, probably in other instruments, and are around $7 instead of $100 to $200 (ridiculous)...
-Charles


 

The Type 549 uses a 6GF5 in the HV supply, also the "almost" compactron 8608 in the vertical output section.