Thank you Billy for the information. Now I can add something for Rogerio, I have seen both in Venezuela, the tube type and the Solid state type. Some places in Venezuela we have a very hot climate. If he uses the original valves, and that is what I tell Rogerio to give it a thought, I have seen them failing sometimes pretty soon, the solid state ones (which I did not know where they acquired them) the last much longer, something like ten times the valve life or more. There is a difference though. For most of the people it sounds quite well, for people with good educated hearing (several musicians share my opinion) the original valves give a warmer and richer sound. In Venezuela because of economic crisis, and imports difficulty(cost) many prefer solid state circuitry, now you have the info, you can choose Elian -----Mensaje original----- De: Bill Kidd <bkidd@tilc.com> Para: pianotech@ptg.org <pianotech@ptg.org> Fecha: Domingo, 28 de Marzo de 1999 01:12 a.m. Asunto: Re: Hammond Organ Elian Degen wrote: > > Rogerio, and List > > Some time ago I read about a company which made Integrated Circuitry > substitutes for these valves. Upon receiving Rogerio´s mail I tried to find > it, but I missplaced it. Let´s see if anyone on the list remembers anything. > They are supposed to have a longer life and solve the problem for many years > > Elian > -----Mensaje original----- > De: Rogerio Cunha <rogeriocunha@openlink.com.br> > Para: pianotech@ptg.org <pianotech@ptg.org> > Fecha: Sábado, 27 de Marzo de 1999 08:44 a.m. > Asunto: Re: Hammond Organ > > >Jim. > >I suppose that is Vacuum tubes or VALVES. > >These parts are electronic valves as 5U4, 12AX7, 5Y3,6L6 , etc, that > permits > >the electrons to flow on it. > >Thanks > >ROGERIO CUNHA - IC MEMBER OF THE GUILD > > > > Perhaps you are speaking of TrekII products. They supply a complete, solid state assembly for some older tone wheel Hammonds. It replaces the tube-type preamp. http://www.trekII.com I just tried them and apparently their server is down, but this was a good url a few days ago. Bill
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