Matamp versus Orange

Tube or solid-state, this section goes to eleven!
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analogguru
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Post by analogguru »

I think we should make a poll now:
What first, the Matamp or the Hottube ?

The Matamp has a complicated interesting switching system...

The Hottube has V1: 150k, V2: 220k, V3: 220k, V4: 220k collector resistors, between V2 and V3 is a 22k resistor and between V3 and V4 a 5k6 resistor in the power-supply rail. On V3 the bypass-cap at the cathode has a trimmer in series to adjust the gain. DC-heating....

The only uncommon at the first view seems to be the use of stereo-potentiometers.

I think I will post the hottube and keep the matamp - a Hottube everyone can buy for $ 150,--, a matamp is more rare. I should keep this secret as my IP.

But:
You said that you like Orange ?
You said that you like Matamp ?

Did you know that I am a sadist ? :twisted:

Sooo.... what would you say to:
Matamp and Orange together - ready for the marriage ?


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enjoy,
analogguru
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Post by soulsonic »

Ha ha, its funny that alot of people don't realize that old Orange and Matamp are the same - but still, I'd like to see if there's any differences in the circuit. The Matamp does look a little different.

What about newer Matamps? Those look to be very different from the new Orange's. I've never seen any schematics for them - it certainly would be a treat to see one of the new Matamps exposed.

But yes, you should do the Hot Tubes first.... more fun that way.
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Post by bajaman »

looks like the Matamp had more power supply decoupling at the input.
I seem to recall some one saying they were marketed as Matamp in the North of England and Orange in the South!?
By the way AG, is that not a dual opamp I can see, in the blurry circuit trace for the Hot Tubes :wink:
Cheers
Steve
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Post by bajaman »

Hello analogguru,
I've been busy working and repairing too - I had so many repairs waiting in my workshop, that I had to leave the next wave in my van for two days :shock: :lol: :lol: .
I am just making my run for the weekend now - (10:19 am on Thursday morning here) and it looks positive :lol: .
....and I was going to send you that Synthi Hi Fli stuff too :roll: :roll:
Cheers
Steve
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Post by analogguru »

By the way AG, is that not a dual opamp I can see, in the blurry circuit trace for the Hot Tubes
Can you remember the crowther relais ? :idea:

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Post by bajaman »

Hmmmm :wink:
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