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Ceriatone / Overtone / Re: Digital multi-effects in loop??
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on: May 28, 2012, 05:50:21 PM
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I believe forum member Pickmaster uses a multi effect pedal in the loop without a buffer and it works very well. I have used my space echo without the c-lator and it worked pretty good as well.
Gregg
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188
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Ceriatone / Overtone / Re: Eminence Swamp Thang & Texas Heat combined in 2x12" for HRM BM 100??
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on: May 23, 2012, 02:33:59 PM
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After much swapping and tweaking i have gone back to my original Weber 1265 alnico's. They needed some break in time, and i needed to learn the amp and really get it set right, but now that i have, i can't see myself using other speakers. i originally had problems with them being too flabby in the low end, but with the right tubes, and some good break in time on the speakers, it isn't an issue now. I went through 4 different speakers and always ended up coming back to em.
That said EV's are always a great choice, as are the suggestions made by everyone here. I may still get a set of Weber's Neo 12's just to see how they sound in the amp. they are supposed to be a pretty good clone of the JBL D120, even better than the WeberAlnico California speakers. i figure if i don't like em i can always flip em.
If you have some buddies in the area with a variety of speakers, trying theirs out might be your best bet, you may find something you really love!
Gregg
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189
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Ceriatone / Overtone / Re: Overtone special settings help
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on: May 23, 2012, 02:27:32 PM
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you mention the OD trim. Why not just play the amp on the clean channel with no overdrive? Am I missing something?
Yeah, i was thinking the same thing. If i recall the standard OTS stays cleaner longer than the BMs when on the clean side, and mine stays clean pretty far up and less i whack it with boost |
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190
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Ceriatone / Overtone / Re: HRM Bluesmaster setup advice
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on: May 23, 2012, 02:24:15 PM
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Hey All,
Well, I thought I'd bump this thread, since I have been interested in it from the beginning. I was in a similar situation as StratUltra, just not getting the sounds I wanted out of the amp. As you guys can see from my posts, I tried a lot of things to switch up the sound and they worked, to varying degrees. So here is the thing, though. I felt the OD on the amp was flubby and boomy. The bass was out of control.
So, a couple weeks back. I ask the dudes at The Amp Garage what mods I should consider for the amp, given what I was looking for. I told them I intended to drop the amp at King Amplification near San Jose (California). So one of the forumites drops me a message, saying he builds these amps, is in San Jose, and will open her up and do some tuning for free if I want to stop by. SCORE.
I show up with a 6 pack of good beer and a clean boost pedal with a loose solder joint to offer in trade. Totally surprises amp dude. He was just going to do it for the hell of it, and get to jam out some. Well, he drops the amp out of the cab, and starts going through the HRM trims (mines a 100w Bluesmaster). Bass is really boomy at this point. He notes the bass trim is all the way off. Huh, interesting. As he's adjusting the trim though, we hear some crackle and hiss. Thinking that there may be a loose solder joint on the trim, he pulls the board and retouches the joints. Brings it back and holy shit guys, totally different amp. It is now everything I want it to be. It can Rock or it can RAWK, yah know? Dude also tunes the PI for more bloom and harmonic content (very key, guys), and checks my bias. Turns out, after 2 years of running her with the Master at 7 (Clator for meta-master), the TAD 6L6's were still balanced and matched. I recommend these tubes to everyone, so I'm glad they are working well. Anyway, that's about it, just a show of great karma from a fellow Dubmele devotee.
Very cool! Glad you got it running the way you like! After 2 weeks or so of having mine out of the cab and tweaking the trimmers i have the HRM just the way i like it. I can now say that i am fully satisfied with my BM, so much so that i am not even going to bother changing the speakers out. Between changing the output tubes to the tung sol 6L6GC-STR's, rediscovering the full lift PAB, and tweaking the HRM, i can now get those early jimmy page (think BBC Sessions, Zep 1&2) and early clapton (bluesbreakers, yardbirds) that i so dearly love with the HRM side. It really brings out the early overdriven Marshall sound. I am very, very pleased  |
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191
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Ceriatone / Overtone / Re: HRM Bluesmaster setup advice
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on: May 07, 2012, 08:46:33 AM
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I said it wasn't loud? I don't remember that lol. It's plenty loud. Loud enough that I shook some plaster loose in my guitar room yesterday, and my house is concrete block and plaster! I think I may have said it can be quiet using the c-lator as a global master
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192
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Ceriatone / Overtone / Re: HRM Bluesmaster setup advice
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on: May 07, 2012, 06:51:06 AM
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Sweet! Glad you found a way to find the sound you were looking for. FWIW I am known to take non traditional approaches to get tones I'm after with the OTS as well. Sometimes it's fun to run the bias hot and really go for that tweed sound. I ran a set of JAN 6L6WGB's at 425 volts and 50ma via the sag switch yup, 50ma! Sounded sweet and even meaner than standard bias, but it was a one trick pony. No clean what so ever, but oh man!!! I wouldn't recommend it, though, at least with those 23 watt tubes. Could cause damage if they red plate and short. But man, what a sound!!!
Gregg
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193
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Ceriatone / Overtone / Re: HRM Bluesmaster setup advice
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on: May 06, 2012, 10:12:18 PM
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I am sure you could have a tech wire the relays up that way. The only problem is that then the PAB would be hot wired to the OD and vice versa, so the PAB couldn't be used separately. A tech could rewire the whole switching system, though. I think two rock and others have 3 and 4 button footswitches and i have heard of one that had adjustable PAB level in the footswitch as well. One of these days i'm gonna have a tech rewire mine and have a footswitch pedal that controls the OD, PAB, Bright Switch, Mid Boost, Deep Switch, and rock/jazz, Maybe even the HRM Bypass. London power sells the relays and little boards, it's just knowing how to wire it, and having enough power from the tranny to do it. I would prolly need a separate tranny, or most likely just build another 1 rack sized box like the c-lator, and build the system in that, and put the c-lator, relay unit, and a rack power unit in a 3 rack box and set it on top of the amp. that's gonna be pricy, though, and a long way off. For now as far the OD and PAB together, I usually just stomp both switches at the same time, just turn my foot 90 degrees and stomp, kinda like heel toe driving  Gregg |
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194
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Ceriatone / Overtone / Re: power tranny
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on: May 06, 2012, 09:41:43 PM
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Mercury Makes a Drop in replacement for the OTS Series. It's a lil pricey, though.
Although pricey, Mercury Magnetics has the best warranty, something like 10 years I think. Might be worth the extra $$. Worth extra? No. That's like paying extra for an extended warranty, something that has become a litmus tastes for saps. It's ten years against defects that 99% of the time show up within the first few months, after most transformers last for 40+ years. That's not a bad deal, but not worth extra money. However, in this case, because of IC secondaries, pickin's is slim, and MM is viable option. But my guess is, after burning out two PT's, the issue is elsewhere. @ wyatt I agree. sounds like there is a short somewhere. Maybe a bad solder job shorting out on one or more of the tube sockets, maybe a bad ground on the center tap, or like you said, in the pilot light wiring. Could also be shorting if there was a bad solder on the little junction post just south of the tranny where the taps run into the heater and pilot wires. Could also be a tube shorting out intermittently. @Burnie Did the HT fuse ever blow? Did you pilot light ever flicker or did you get any scratchy popping sounds while the amp was playing? It does kinda suck that there are limited options as far as replacement trannys go. I often thought if i ever had to replace it i would either get one from Nik (most preferable), or if time was an issue, get one from hammond that had all the required taps with rthe equired current except the 6 volt for the relays and then mount a seperate 6 volt tranny also from hammond, rather than get the overpriced mercury. that's how i feel about mercury. i've often thought about asking Nik if 5 volts is enough for the relays to work properly too as you can usually get a tranny with 345-0-345, 3.15-0-3.15, 60-0, and 5-0, the 5 which would be used for a tube rectifier. 5 volts prolly isn't enough, though, unfortunately. Gregg |
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195
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Ceriatone / Overtone / Re: Tube rectifier in OTS - possible??
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on: May 05, 2012, 06:41:52 AM
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I think you will find medium to high gain tube amps with an OD circuit don`t employ tube rectification.
Older/vintage low wattage amps used tube rectifiers, but i`m sure anything with an OD channel/circuit wouldn`t be best suited this.
I guess the simple reason would be.. vintage amps without an OD circuit already 'sag' when pushed hard due to the inefficient power supply of the older amps.
This could well be desirable if you were playing the blues through a tweed bassman, super,deluxe.. etc, but an amp with an intended OD channel needs a modern type power supply that will keep up with the demands of the amp.
Cheers...
Not entirely true. Amps with OD Channels or even cascading gain amps like the OTS can have Tube rectification. Voltage Sag has nothing at all to do with OD, even output section (PI and sometimes output tube) OD like you would get on some of the amps you mentioned. The reason most amp builders opt for diode rectification is for reliability over their tube counterparts, and also because they are looking for less sag and more touch sensitivity and fast response in their amps. An OD channel in an amp, whether it be a dedicated channel or a cascading gain type will draw very little in the way of current as 12AX7 type tubes don't draw much in the way of current, so you can indeed have a tube rectifier, or two, or as many as it takes to provide the current and voltage you need in a modern high gain amp, but again, for economy and reliabilty, most builder opt for diode solutions. Gregg |
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