[TechAssist] Re: Gibson longshot
- From: "mark brock" <brock@xxxxxxx>
- To: <techassist@xxxxxxxxxxxxx>
- Date: Wed, 1 Jan 2003 11:39:30 -0800
GA19RVT is the model, I was wrong, there is a foot switch, its hard wired
in and mounted in a hidden box, so now the reverb does work, but has a
loud hum in it, I've ordered all the wax cap's and suspect one of them is
bad, still no tremelo, both reverb and tremelo are turned off and on with
the foot switch, if you have this print I sure would appreciate it.
----- Original Message -----
From: "Stefaan Van Slycken" <vanslycken@xxxxxxxxxx>
To: <techassist@xxxxxxxxxxxxx>
Sent: Tuesday, December 31, 2002 6:04 AM
Subject: [TechAssist] Re: Gibson longshot
>
> I have some gibson schematics (in "a desktop reference of hip vintage
guitar
> amps"), let me know the type (GA-xx or something) and i'll send you a
scan.
>
> Stefaan Van Slycken
> Van Slycken Elektro, Waasmunster, Belgium
>
>
> ----- Original Message -----
> From: "mark brock" <brock@xxxxxxx>
> To: <techassist@xxxxxxxxxxxxx>
> Sent: Tuesday, December 31, 2002 5:03 PM
> Subject: [TechAssist] Re: Gibson longshot
>
>
> >
> > should have mentioned that I guess, this one doesn't have a foot switch
> > jack, none of the controls have a switch on them either, I assume that
the
> > reverb and tremelo are active all the time and you simply control there
> > amount from 0 to full with the pots ? thanks for the suggestion,
> > brock
> >
> > ----- Original Message -----
> > From: "walter wood" <wwood_38478@xxxxxxxxx>
> > To: <techassist@xxxxxxxxxxxxx>
> > Sent: Monday, December 30, 2002 1:35 PM
> > Subject: [TechAssist] Re: Gibson longshot
> >
> >
> > >
> > > Just a thought.
> > > Do you have the remote footswitch for this amp.
> > > Some amps used switching jacks for the effects,
> > > Maybe that they will not operate without the
> > > footswitch plugged in.
> > > HTH
> > > Walter
> > > --- Stefaan Van Slycken <vanslycken@xxxxxxxxxx>
> > > wrote:
> > > >
> > > > Hi Mark...
> > > > I guess you're talking about a tube guitar amp...
> > > > there's a nice forum over
> > > > at www.ampage.org (or www.firebottle.com/bbs) -
> > > > it would be handy if you
> > > > have a type of some kind. Some schematics are at
> > > > http://www.gibson.com/relations/schematics/
> > > > Maybe the first thing to try is to move every
> > > > resistor a bit and see if none
> > > > of the legs break off, they might look ok but be
> > > > corroded inside...
> > > > From your description i take it you have tried
> > > > swapping tubes? Seems a bit
> > > > odd both vibrato & reverb aren't working...
> > > >
> > > > Stefaan Van Slycken
> > > > Van Slycken Elektro - Waasmunster, Belgium.
> > > >
> > > >
> > > > ----- Original Message -----
> > > > From: "mark brock" <brock@xxxxxxx>
> > > > To: <techassist@xxxxxxxxxxxxx>
> > > > Sent: Monday, December 30, 2002 11:55 PM
> > > > Subject: [TechAssist] Gibson longshot
> > > >
> > > >
> > > > >
> > > > > nice clean old amp, all works except tremelo
> > > > and reverb, tank is ok,
> > > > > tubes, caps and R's all check ok, no print,
> > > > customer sure would like it
> > > > > fixed and I sure would like to see if his check
> > > > cashes, anyone have any
> > > > > idea ? volume changes a little when reverb is
> > > > turned so I think the iso
> > > > > transformer and its attachments are ok,
> > > > customer said not played much and
> > > > > doesn't look like it, no over heated
> > > > resistors, uses those old wax type
> > > > > caps but they still check within percentage
> > > > that it should change some
> > > > what.
> > > > > appreciate any help
> > > > > brock
> > > > > Brock Electronics
> > > > > R.R.4 box 237
> > > > > 5208 cr.3385
> > > > > Independence Ks. 67301
> > > > > 620-331-0235
> > > > > fax 331-7191
> > > > >
> > > > > brock@xxxxxxx
> > > > > mailto:brock@xxxxxxx
> > > > >
> > > > >
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> > >
> > > =====
> > > Walter Wood
> > > Future Tech Home Center
> > > 2786 Hwy. 43 N.
> > > Lawrenceburg Tn. 38464
> > > 931-829-3337
> > > Fax 931-829-4044
> > > mailto:wwood_38478@xxxxxxxxx
> > >
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