Hi, On Hammond organs with tone wheel generators, it is imperative to oil the generator, once a year. It must be Hammond oil that is used. I remember when I was tuning for a Beach Boy concert, they had a Hammond that had been adapted to solid state genarators, by a company in California. I would imagine it was an expensive proposition, and would not be warranted on an RT3. I have only seen solid state replacements for the rectifier tubes (valves) Although in the back of my mind I seem to remember outputs as well. Regards, John M. Ross Ward & Probst wrote: > Jims et al,Harvey is right about most of the stuff. The 5Y3 is a > rectifier tube for the pedal solo unit power supply. The pedal solo > has 32 foot stops as well as 16 foot, etc. It generates the > frequencies electronically rather than from the tone wheels. I would > not think all the tubes would be bad, it would be rare in my > experience. If you can find a technician to check it for you, it might > be to your advantage to do so. Tone wheels keep on turning, Dale > > Dale Probst > Registered Piano Technician > Ward & Probst, Inc. > Piano & Organ Service > Wichita Falls, TX > > > http://www.ptg.org/1999/conv/ > > > -----Original Message----- > From: owner-pianotech@ptg.org [mailto:owner-pianotech@ptg.org]On > Behalf Of harvey > Sent: Saturday, March 27, 1999 11:24 PM > To: pianotech@ptg.org > Subject: Re: Hammond Organ > > To JimRPT: valves and tubes (one is Euro version); > > To Elian: Unless something has changed, it's unlikely that solid state > replacements are available for anything other than, possibly, the > rectifier tube. > > To Rogerio: No problemo con los valvos nuevo, pero... porque su piensa > que los valvos esta malo o roto? If memory serves, the RT3 is > primarily a tone wheel generator model. The on-board electronics > served as a pre-amp for another remote slave amplifier/cabinet. There > may have been some square black tabs on the console that either > coupled or did something with pedal tones (sub-frequencies). > > It certainly won't hurt to have new tubes (valves), since it will give > you backups. However, the 'newest' RT3 is now... old. More than likely > you will find problems with either the filter capacitor, and/or the > coupling capacitors. Now, really trusting memory, your tube functions > would likely be: > 5U4 = rectifier, as mentioned; > 12AX7 = preamp > 5Y3 = phase inverter > 6L6 = output > etc. = never heard of this one. 8-} > > I see you now have a source for tubes. If the new tubes don't work > out, E-mail me (or Dale Probst). > > Regards, > Jim Harvey, RPT > (y perdonome Espanol.. mucho tiempo pasada) > > At 08:27 PM 3/26/99 -0300, you wrote: > >> To the list. >> There are someone on the list that knows where I may to buy a full >> set of valve tubes to the my church's Hammond organ model Concert RT >> 3 . >> I need to buy this and is better if from USA and, if possible, is >> more easy to connect by email or fax. >> I thanks to all >> ROGERIO CUNHA - IC MEMBER OF THE GUILD > > > > Jim Harvey, RPTGreenwood, SCharvey@greenwood.net
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