Touchmaster Amplifier

Hello all! I was wondering if you manage to acquire a Dunbar Nunn Touchmaster, can you switch it’s amplifer with a new Touchmaster? So it can produce the DN sounds instead of FS. Also do the PA versions still contain the siren tones?
 
Last edited:

shues

Lifetime VIP Donor
May 21, 2010
10,276
NW Indiana
Based on the context of your question, it seems like you may have used the word "driver" where you mean "amplifier." The driver is a component of the siren speaker. The amplifier is the part that generates the tones.
 

MtnMan

Member
Dec 20, 2012
1,533
Eastern PA
I'm not aware of any major design changes when FS took over Unitrol, so I think the amp circuit boards would be interchangeable.

As for the PA-only version (like the one that just sold on eBay), again I think the circuit board would be the same. The question is whether Dunbar-Nunn reprogrammed the microprocessor to eliminate the siren tones . Common sense would say there's no need for that, but D-N tended to be a bit obsessive about engineering details, so maybe they did.
 

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