bolero Posted March 16, 2014 Share Posted March 16, 2014 went to check out an amp today....get to the guys place, looks ok but I want to make sure it works before we do the deal he plugs it in, grabs a gtr, plugs the gtr into the amp, I strum....no sound? "is the volume on?" "yup" I check the gtr vol, while he twists some dials on the amp... "uh...the speaker *is* plugged in, right?" tilts the amp forward..."oh crap, yeah I had it plugged into another cab when I was using it" I wanted to slap the guy!!! WTF???? turned the amp off, plugged in the speaker & I tentatively played a chord....seems to work ok. played it a bit longer & went thru the controls, turned the volume up...yikes we got lucky there ....lesson learned......NEVER ASSUME ANYONE KNOWS WTF THEY"RE DOING!!!!!!!!!! Link to comment Share on other sites More sharing options...
Gitfiddler Posted March 16, 2014 Share Posted March 16, 2014 Turning on a tube amp without being connected to a speaker is a sure way to blow a tranny. Lucky it was only for a brief moment. Did you buy the amp? Link to comment Share on other sites More sharing options...
Guest HRB853370 Posted March 16, 2014 Share Posted March 16, 2014 Turning on a tube amp without being connected to a speaker is a sure way to blow a tranny. Lucky it was only for a brief moment. Did you buy the amp? And in the case of solid state components, you could blow the output transistors. (talkin more hi fi stuff here) Link to comment Share on other sites More sharing options...
ScottNaylor Posted March 16, 2014 Share Posted March 16, 2014 My avatar is weeping! Link to comment Share on other sites More sharing options...
Redsand Posted March 16, 2014 Share Posted March 16, 2014 Turning on a tube amp without being connected to a speaker is a sure way to blow a tranny. Lucky it was only for a brief moment. Did you buy the amp? Let's keep it PG-13 fellas. Link to comment Share on other sites More sharing options...
bolero Posted March 16, 2014 Author Share Posted March 16, 2014 Turning on a tube amp without being connected to a speaker is a sure way to blow a tranny. Lucky it was only for a brief moment. Did you buy the amp? exactly!! yep, it is a cool little amp I have been on the lookout for, they are kind of rare around here this album was recorded with one: Link to comment Share on other sites More sharing options...
bolero Posted March 16, 2014 Author Share Posted March 16, 2014 I plugged it in, and gave it a quick runthru, while watching the tubes to make sure they didn't runaway I think it sounds really good, but has some random sputtering & pops so I will restrain myself from playing it until I get it checked out 100%. I bet it needs caps humbucker equipped firebird: https://soundcloud.com/roofleaks/musicman-clip Link to comment Share on other sites More sharing options...
slider313 Posted March 16, 2014 Share Posted March 16, 2014 Most tube amps have a shorting jack at the speaker out. If nothing is plugged in to the speaker out, the amp is safe as the jack shorts to ground. What could happen with a head is, you have the cable plugged into the amp but not into the speaker cab. This is a sure way to blow the output transformer. Link to comment Share on other sites More sharing options...
DetroitBlues Posted March 16, 2014 Share Posted March 16, 2014 I've been hesitant to use the extension jack on my Traynor because I'm worried about the extension jack never been used (40 year old amp) and the manual stating minimum 8ohm cab. I'm worried about dropping it down to 4ohm or even worse a 16ohm mixed with a 8ohm.... Link to comment Share on other sites More sharing options...
Blunote Posted March 17, 2014 Share Posted March 17, 2014 I'm no expert but I think running a 4Ω would cause the amp to run harder than moving up to a 16Ω load. Link to comment Share on other sites More sharing options...
DetroitBlues Posted March 17, 2014 Share Posted March 17, 2014 Musicman is coming back out with their amps. I see them around here from time to time for $500 or less. Compact but freaking heavy! Link to comment Share on other sites More sharing options...
bolero Posted March 17, 2014 Author Share Posted March 17, 2014 Musicman is coming back out with their amps. I see them around here from time to time for $500 or less. Compact but freaking heavy! yes I read about that, too...another reason why I wanted to get one before they reissued them for $1500 and drive up the prices on old ones! it appears to be a very good amp, I hope the maintenace isn't too pricey. But hey, anytime you buy an old amp, you gotta bite the bullet Link to comment Share on other sites More sharing options...
peterbright Posted March 17, 2014 Share Posted March 17, 2014 good luck with it Link to comment Share on other sites More sharing options...
tulk1 Posted March 17, 2014 Share Posted March 17, 2014 Most tube amps have a shorting jack at the speaker out. If nothing is plugged in to the speaker out, the amp is safe as the jack shorts to ground. What could happen with a head is, you have the cable plugged into the amp but not into the speaker cab. This is a sure way to blow the output transformer. +1 and more on this. I have "missed" plugging the cab into my TA15 SO many times, it's become a running joke in the band. Especially when I'm going "I've got no sound!". Most of those times it's when I've had help setting up my rig while I'm setting up the PA. And sure enough, there's the cable plugged into the speaker cab, but not in the amp head. So, yeah, speaker should be plugged, but it's not the instant killer that seems to have such prevalent thought in recent years. Link to comment Share on other sites More sharing options...
Yooper Posted March 17, 2014 Share Posted March 17, 2014 Bolero, I bet you bond with that amp. I love my Musicman amp. I got it way back when I wanted a Boogie but couldn't afford it. Now that I have a Boogie, I still love the Fender-ish bright sound of my MM. Very versatile. Link to comment Share on other sites More sharing options...
Yooper Posted March 20, 2014 Share Posted March 20, 2014 Compact but freaking heavy! Yeah, DB, MMs are heavy, but not as heavy as a Boogie of similar power. I'm still on my quest for a good gigging tube amp under 45 pounds. Spinal disc degeneration sucks. Warren Haynes's guitar tech Brian Farmer uses a Musicman RD-65 amp like mine. Link to comment Share on other sites More sharing options...
buzzy Posted March 20, 2014 Share Posted March 20, 2014 Must be time for another pic Link to comment Share on other sites More sharing options...
Yooper Posted March 21, 2014 Share Posted March 21, 2014 That's one fine, sparkling gem of an amp. It will nicely do what you need it to do. Link to comment Share on other sites More sharing options...
bolero Posted March 21, 2014 Author Share Posted March 21, 2014 mine is a 112 RP model...here is one: mine is in considerably worse than mint shape actually one I replace the grillcloth it will look pretty good the trem is excellent...goes from Fender all the way into Moog territory!! pretty neat Link to comment Share on other sites More sharing options...
Yooper Posted March 21, 2014 Share Posted March 21, 2014 Looks like we have a Music Man amp wing of the HOC. I've had my 112-RD 65 since 1979. Zero problems. Link to comment Share on other sites More sharing options...
slider313 Posted March 21, 2014 Share Posted March 21, 2014 mine is a 112 RP model...here is one: mine is in considerably worse than mint shape actually one I replace the grillcloth it will look pretty good the trem is excellent...goes from Fender all the way into Moog territory!! pretty neat The 112 RP has reverb and a phase shifter, not tremolo. I guess that's why it gets you into "Moog territory! Link to comment Share on other sites More sharing options...
bolero Posted March 22, 2014 Author Share Posted March 22, 2014 haha....good point I guess it would explain the "P" I assumed it was just a souped up trem circuit they renamed to avoid copyright, or add hype Link to comment Share on other sites More sharing options...
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