Manual for Cream Machine and Blues Master (aka 'Crunch Master') - Manual-- Hughes & Kettner Cream Machine and Blues Master (aka 'Crunch Master') Unofficial Hughes & Kettner Home Page, dedicated to Hughes & Kettner guitar amplifiers. Schematic for Crunch Master. Schematic for Cream Machine. Crunch Master controls and features: Preamp gain pot. Only Hughes & Kettner has mastered the science of conjuring 128 sounds out of a tube amp without having to turn a knob! 2009 The Coreblade is widely hailed as the world’s most advanced professional tube amplifier for the touring artist.
Fosnal1950 wrote:I have one, it's a favourite but what I would like is a better signal to noise ratio. It should have a separate inputlevel and outputlevel. And changing the tube is a bitch! Odd, my Mk 1 isn't very noisy at all. I like to put it at the end of my signal chain, right before the amp, and I don't use much input drive on the Rotosphere. Sounds magic with a Timmy, Big Muff or whatever in front and a clean Fender or Ampeg valve (tube) amp bringing up the rear.
I like the JJ Tesla 12AX7 tube best, so far. Changing the tube is a bit fiddly. Resistor Ronker Posts: 379 Joined: 07 Jan 2011, 08:41 Location: the garage Has thanked: times Have thanks: times. Thanks blackbunny for those schematics, they'll come in handy I just got my Mk 1 working after 5 years of thinking it was broken Turns out I was using the wrong supply.not enough grunt It was lighting up but no signal and the rotor lights were'nt firing I sure would like to know how to reduce the hiss.low noise valve perhaps? Maybe I'll put a on/off breaker switch in as well Cheers, squatch Posts: 29 Joined: 27 May 2011, 18:30 Location: Sydney, Australia Has thanked: times Have thanks: times. Squatch wrote:I sure would like to know how to reduce the hiss.low noise valve perhaps?
That will help. I tried various ECC83 / 12AX7A / 7025 valves and settled on the JJ 12AX7 because I liked the tone best. The Mesa / Baron and Sovtek 12AX7LPS both had slightly lower noise than the JJ, but sounded a tiny bit thinner or 'harder', while the JJ sounded 'warmer' and more like an old valve Leslie speaker. The lowest noise of all was a Marshall-branded ECC83 from the late 1990's; these have an unusual plate structure and look like a TAD ECC83 / 12AX7A. Squatch wrote:Turns out I was using the wrong supply.not enough grunt It was lighting up but no signal and the rotor lights were'nt firing I use a 1500 ma 12.6VAC supply so that there is no sag. I also replaced the regulator IC's with 7812 and 7912 regulators in TO-220 cases, and added 0.1 poly film capacitors to the regulator outputs in parallel with the 2.2uF tantalum capacitors.
To keep noise down, make sure your gain-staging is optimum. I set the input level switch to the 'low' position and get some nice overdrive when my guitar level is cranked for solo's, and it also seems to result in the lowest noise and hiss. Thanks again blackbunny, great info I was fiddling about the other day with the gain settings, trying to balance the output of the Mutron III to the input, the Mutron's a fairly hot output,but I got it sounding pretty good. Now I want to put a Blue Boy Deluxe between the two but I worry about blowing the BBD input with the Mutron With the Mutron peak on 3 and the gain on 6 (in High mode), it worked pretty good into the Rotosphere I can sort out a better PSU (which might also reduce the hiss), and change the valve, but I'm just a regular guitar tech, so I'll get my synth tech to do those other mods Cheers, squatch Posts: 29 Joined: 27 May 2011, 18:30 Location: Sydney, Australia Has thanked: times Have thanks: times. Squatch wrote:I can sort out a better PSU (which might also reduce the hiss), and change the valve, but I'm just a regular guitar tech, so I'll get my synth tech to do those other mods The important thing is to get a strong enough power supply so that the voltage at the effect input never drops below 12VAC under load. The regulators need at least 15VDC inputs to regulate properly. If they don't get enough input voltage, there is little or no regulation so hiss and hum levels will increase in the DC supply to the IC's and transistors.
Squatch wrote:Now I want to put a Blue Boy Deluxe between the two but I worry about blowing the BBD input with the Mutron Yep, that's a risky proposition alright. I have a late 70's EH Electric Mistress and Deluxe Memory Man both sitting in my cupboard waiting for SAD1024 BBD's. Best to put any high output devices after them.but then you amplify all that BBD hiss!
Sorry about the confusion blackbunny.what I should have said 'I worry about blowing up the MI Blues Boy Deluxe input with the Mutron' heh.I wasn't even thinking about Bucket Brigade Device LOL Thanks again squatch Posts: 29 Joined: 27 May 2011, 18:30 Location: Sydney, Australia Has thanked: times Have thanks: times. Years ago I used to lug a Leslie 122 cabinet around in my truck for the keyboard player in a band I was in. The little 25 watt valve amp inside was never loud enough to be heard above the band's racket, so he took out the amp chassis and connected a HiWatt 200 valve PA head. It sounded gorgeous, but was a pain to lug around. Now I'm older I'm happy to settle for 'second best' and save my aching back. Thanks to the Rotosphere. I must say your cut-down rotary speakers look like a cool idea Doug.
Resistor Ronker Posts: 379 Joined: 07 Jan 2011, 08:41 Location: the garage Has thanked: times Have thanks: times. DougH wrote:Or. Just get one of these: These are actual leslie units from home console organs. You can find these for sale pretty reasonably. I bought the one on the right for $40. I've built it into a suitcase-sized leslie for my guitar or organ. It sounds very good- 2 speeds with the speed ramp etc.
Has an 8' speaker and I just plug one of my amps into it. I once recorded one of those on a 4 track with 4 mics evenly spaced around it.
Playing it back with, guess what, 4 speakers gave. Incredible surround!!
Changing position of the speakers was even more fun. Blackbunny wrote:I wish! Years ago I used to lug a Leslie 122 cabinet around in my truck for the keyboard player in a band I was in. The little 25 watt valve amp inside was never loud enough to be heard above the band's racket, so he took out the amp chassis and connected a HiWatt 200 valve PA head.
It sounded gorgeous, but was a pain to lug around. Now I'm older I'm happy to settle for 'second best' and save my aching back. Thanks to the Rotosphere.
I must say your cut-down rotary speakers look like a cool idea Doug. I just finished the wood-finishing last night and I'll post some pics in another thread. This is fairly light- no power amp.
I just use it as a cabinet with one of my guitar amps. I don't know what the power capacity of the speaker is but I've been using a 10W amp with it and it sounds good. Would need to be mic'd in the p.a. For live band use. I'm just using it at home for recording etc.
Next project is to do some repairs to a Korg CX3 drawbar organ, which will get used with this leslie. It's a fantastic sounding combination.
:: mrbill::: does anyone have hk schematics? I have an original tubeman and wont part with it period. Having bounced it for the n'th time it needs more than a tube. I've been looking for schematics for a while and haven't seen ANY hk schem's for anything.::: I need Hughes & Kettner tubeman plus schematics.
![Hughes Kettner Vs 250 Schematic Hughes Kettner Vs 250 Schematic](/uploads/1/2/5/4/125499031/674877330.jpg)
Can anyone help me?::: hi, i just purchased a used tubeman plus. But without schematics? Have you got a schematic???::: joerg. :: mrbill::: does anyone have hk schematics? I have an original tubeman and wont part with it period. Having bounced it for the n'th time it needs more than a tube. I've been looking for schematics for a while and haven't seen ANY hk schem's for anything.::: I need Hughes & Kettner tubeman plus schematics.
Can anyone help me?::: hi, i just purchased a used tubeman plus. But without schematics? Have you got a schematic???::: joerg.