Try to dry fit the speaker with the amp chassis and cabinet loose before you drill the screw holes. Results 1 to 31 of My opinion, but those that disagree probably sell tubes. I had one briefly. I’ve also done it to a few Dr. This speaker matches the amp and cabinet size perfectly and you get a classic, scooped fender blackface tone from a little amp.

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Good 12AT7 Tube for Reverb | The Gear Page

Last edited by mooreamps; at I plan on mapping the circuit out by marking up the engel schematic has ss reverb. But note it is the circuit that reverbb you what kind of tube you want, not the other way around – you want the small transformer circuit, you need a small power tube.

Timbre WolfJul 11, Jul 10, 9. Wire the 8 ohm tap to the main speaker jack. It then uses one half of a 12AX7 after the reverb as make-up gain. How does it sound?


These tubes have lower voltage gain and different frequency responses, particurlarly when distorting. From my understanding, and others may feel free to chime in on this one.

We’ve added some “new” guys to the moderator crew. Listen to the blond Baja Tele and the ES Jul 10, 4. Jul 21, 6.

IF you post the voltages around that driver circuit along with the resistors that are used, there are those here who can guide you as to what is ‘correct’ and ‘incorrect’. No, create an account now. Jul 10, 6.

Good 12AT7 Tube for Reverb …

This has a lower tube count, which is generally good. How about as a phase inverter? In both long and medium delay, the 6 spring tanks were MUCH better than the 4 spring units. The NBF theory is that you take the signal from the speaker output, let it go through a resistor and mix it in at the entry point of the phase inverter.

For an amp with onboard reverb, the impact would depend on the circuit. My own home brew guitar amp uses push pull 12AT7, the push pull tanny is a Hammond 1at7 the circuit is “borrowed” from Kevin O’Connor. Then wire the 2 or 4 ohm tap to the ext speaker jack. Jul 10, 7. I would appreciate if someone explains that.


Yes, my password is: Originally Posted by Then wire the ground switch in series with the NBF resistor. I was always curious how that Mesa reverb circuit will sound and if they are using their own transformer. Try replacing the cable to the tank first. Do you already have an account?

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Originally Posted by defaced. The Gear Page is run by musicians for musicians. This speaker matches the amp and cabinet size perfectly and you get a classic, scooped fender blackface tone from a little amp.