M149 clone build

[Matt Nolan]

I honestly didn't realise the M147 and M149 were considered as bad as you say.

I don't think the 149 is disparaged anywhere near as much as the 147.

 

[micaddict]

True.

 

[Dylan W]

Very true, S800G it is then, I will try and put a switch to implement diodes and tubes in the psu to give two styles of sound rather like the Mesa boogie dual rectifier.

Spence.

I'd guess this will not do much since the C800G is single-ended class A, and so has pretty low and constant current draw (versus heavy-current push pull). But no harm in trying and reporting back.  ;D

 

[Whoops]

Hi,
5 years after I'm servicing an M149 microphone.

Was anyone ever able to get the schematic for the M149?

Do you know if I can measure the correct voltages of the PSU without the mic connected or to get the correct readings the mic should be connected to the PSU?

Thank you so much

 

[pretzl salt]

The M149 has the Amperex 8254 tube in it. EC1000 Tube Datasheet pdf - Tube. Equivalent, Catalog. Servicing this model that has one intermittent side and trying to figure it out.

 

[Whoops]

I was able to fix the M149 mic just by carefully cleaning the capsule.
The mic would cut the sound when you sang into it, the problem was due to a contaminated capsule.
Cleaning it fixed the issue completly