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Hoffman Amps Forum image Author Topic: Matchless Chieftain Reverb layout check  (Read 4323 times)

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Offline Tonewolfamps

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Matchless Chieftain Reverb layout check
« on: April 21, 2020, 03:38:02 pm »
I made this from a schematic for a guy who wants to build a "clone" of a Matchless Chieftain Reverb and use a board. A real Matchless is entirely point to point, uses 1 watt carbon comp resistors and heavy duty power resistors on the supply and power tubes. Those parts are difficult to source so it isn't a true clone.  Thought I share my layout to check my work and also get some feedback.
Here's the full size layout:
https://drive.google.com/file/d/1fSteoeLyykP_doaHeZbxwXEpmTEQ6vP5/view?usp=drivesdk
Here's the schematic I used:
https://www.thetubestore.com/lib/thetubestore/schematics/Matchless/Matchless-Chieftan-Schematic.pdf

Offline Willabe

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Re: Matchless Chieftain Reverb layout check
« Reply #1 on: April 23, 2020, 07:45:47 am »
If you want help, it would be very helpful to post a schematic for your build.

Too hard to figure out what's right/wrong possibly from a layout drawing.
My mistake.
« Last Edit: April 23, 2020, 09:20:28 am by Willabe »

Offline kagliostro

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Re: Matchless Chieftain Reverb layout check
« Reply #2 on: April 23, 2020, 09:04:43 am »
Seems that a schematic link Is on the post

Franco
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Offline Latole

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Re: Matchless Chieftain Reverb layout check
« Reply #3 on: April 23, 2020, 09:09:04 am »
IMO, OP wish we check if his layout is a copy from the schematic.
Yes schematic is on the post.

Offline tubenit

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Re: Matchless Chieftain Reverb layout check
« Reply #4 on: April 23, 2020, 11:08:48 am »
I found the original schematic very difficult to read.    I've tried to redraw it in a manner that is easier for me to follow.   

Assume there may be errors and compare to the original schematic.

With respect, Tubenit
« Last Edit: April 25, 2020, 07:56:28 am by tubenit »

Offline Latole

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Re: Matchless Chieftain Reverb layout check
« Reply #5 on: April 23, 2020, 11:37:13 am »
Much better Tubenit .

Offline ac427v

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Re: Matchless Chieftain Reverb layout check
« Reply #6 on: April 25, 2020, 06:41:27 am »
Nice Tubenit. Point B in the power supply needs C2.


* Corrected above.  Good catch! Thanks
« Last Edit: April 25, 2020, 07:56:06 am by tubenit »

 


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