Recent content by dexter.sinister

Not in mine.

The TCR508 FET is acting as a diode in this implementation. It is there to provide a constant current source through the nominal range of the device. The Limit is a pot in series which reduces the regulated current to starve the tube. Not uncommon to use a FET with two legs joined for this very...

The pot on the limit control is a variable resistance. As the pot adds resistance, the current limiter is made less relevant. If the diode and pot are replaced by a fixed resistance, the pot can by used for another function, such as presence.

The TCR 5305 in the schematic is the current limiting diode I mentioned. In my amp, “Presence” was wired as “Limit” as I mentioned, with a potentiometer wired in series with the diode. A service hack that Mesa is said to have endorsed is swapping the diode for a 1k5 resistor on the cathode of...

Better late than never…but… IIRC, the “Limit” pot introduces variable resistance in series with a FET acting as a diode that clamps the current flowing through the driver/PI cathodes. As the resistance rises, it swamps the effect of the FET and starves the driver/PI so that it becomes...

I harbor no regrets, but miss a few. 74 Gibson Les Paul Custom. Did midwest regional tours with that 79-82. Sold it to buy my friend and manager a 60s Gibson EB3 bass so he could get his Felix Papalardi on. 91/2 PRS Custom 24. Toured that from Cabo to Juneau for a few years on the I-5...

If the cab case will host a V35, I will buy them both. I need to relocate a V35 from MA to SoFL, so seek a used ATA case for my V35 combo to move south. I'll likely flip the head case to recoup. Unless another BB-er will go ~halvsies with me. Many thanks for the info. Cash in hand. Rik

Craigslist score. Between the neo speaker and this cab, I made cartage work way more better(er). Gotta keep touring costs down to make it work for regionals...

It sounds and feels like a blackface Fender Bassman with a stiffer power supply. I happen to like that. I run my SOB into a Freyette Power Station in channel 2 with the gain nearly maxed. Mine has the "limit" feature, which I do not use. I run a delay in the loop of the Power Station. Rehoused...

OK! Amp arrived well, dialed in a couple core tones at the northern home base tab low volume levels and was out 6 hours later. Did 3 loud sets and tweaked settings as I ran out. Pretty easy ride, as I only really needed a dynamically responsive and bouncy clean tone and a liquid lead tone for...

The 5:35 cab is a tight fit for the footswitch, but the V:35v FS is smaller than the Mark V FS. I manage with the V:35, but it is not wonderful.

This is the daily driver: '73 Strat hardtail with a bridge bucker SOB rehoused in a pine combo cab with an Alessandro neo 16 ohm Freyette Power Station to match the 16 ohm speaker to the 8 ohm amp and to provide a post-OT effects loop The loop has a Suhr MiniMix with an EQD Dispatch Master in...

^^^ Nice guitar! What is it? Hey, do you use your limit? I haven't found it to be useful, especially since I play my SOB wide open (ch 2 vol 6-7, master dimed) into a Freyette Power Station to dial it to the room (no attenuation in the rock bars and for sessions, choked back a few clicks for...

Psyched! Pairing this with an axe with a neck Firebird mini-hum and a bridge P90. This one is for work with an African rock band a couple thousand miles north of my usual gig. Leaving it at the place I live in up there and will commute from down here for shows. Auditioned several amps looking...

This one is winging my way. Just in time for my birthday. Hot rats!