Build Contemplation
Moderators: pompeiisneaks, Colossal
Build Contemplation
I am thinking about building a solid state preamp the basis for mine uses a pair of TY1243 transistors in it and I have been unable to locate any does anyone have a source or a substitute.
- pompeiisneaks
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Re: Build Contemplation
From the Vox showroom a site that does a lot of write ups on vox amps (Their 700 series amps used these)
"While introducing distortion, the diodes reduced the level of the signal to an unusable point. Vox designed a gain recovery circuit using two TY1243 transistors (TR3 and TR4) to increase the level of the fuzz tone to an acceptable level. Should you be servicing a 715, the TY1243 transistor is out of production and there is no known substitution."
See here:
http://www.voxshowroom.com/uk/amp/715_hood2.html
~Phil
"While introducing distortion, the diodes reduced the level of the signal to an unusable point. Vox designed a gain recovery circuit using two TY1243 transistors (TR3 and TR4) to increase the level of the fuzz tone to an acceptable level. Should you be servicing a 715, the TY1243 transistor is out of production and there is no known substitution."
See here:
http://www.voxshowroom.com/uk/amp/715_hood2.html
~Phil
tUber Nerd!
Re: Build Contemplation
What quality do these offer that a modern devices lack?
Tube junkie that aspires to become a tri-state bidirectional buss driver.