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Rickenbacker TR 25 Guitar Amp.

PostPosted: Fri Aug 31, 2018 12:36 am
by paologregorio
Anyone out there, other than Graham, have a TR 25? I wbought one two years ago on Graham's recommendation. Fantastic 25-watt amp. Solid sate, and sounds as warm as a tube amp. Nice vibrato and reverb.

Does anyone have one of these, and if so, do you have the original footswitch? I'm using a Fender Twin footswitch for mine.

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Fri Aug 31, 2018 9:01 am
by jdogric12
Interesting. I'd love to hear what its 12" can do. I have 4 TR7's and love 'em (obviously, if I have four). One of them is a "Gem" though, not a Rick, but aside from the name is exactly the same as far as I can tell. I've been running a new pedalboard I wired up with 3 channels - via a Morley ABC, 1 channel is "guitar" through regular guitar pedals, 2 is "keyboard" which runs through things like a rotary speaker emulator, filter modeler, and synth sounds, and 3 is an octave pedal to a bass amp. The "keyboard" channel runs stereo to a pair of TR7's! :)

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Fri Aug 31, 2018 9:52 pm
by paologregorio
Interesting!

The only things I have to record video are my laptop and my IPhone; I doubt either is ideal for a sound sample. The TR25 is an excelent 25-watt amp; as warm to my ear as a tube amp. It's my main small rehearsal amp. I used it for practices when I was in OCBI with Joey Vasco and Mark Pytko.

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Sun Dec 30, 2018 5:48 pm
by paologregorio
Bump? :D

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Fri May 03, 2019 4:46 pm
by chuck_king
I have one. Nice and portable. The only thing holding them back is anti-solid-state snobbery, I think.

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Sat May 04, 2019 2:13 pm
by Ontario_RIC_fan
I own one too.

I used it in a stage play last year, with my 1977 JG 620. It nails the classic RIC tone.

Brian

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Mon May 06, 2019 4:36 am
by prowla
I acquired one last weekend.

I've not tried it out yet; it was being used for demos on a seller's stand at a guitar show.

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Tue Nov 26, 2019 3:09 pm
by cas
I have one...was my first guitar amp--bought it in the late 70's. Unfortunately mine just went on the fritz and i need to fix it--it sounds great for bass but it think I over did it and rattled something loose inside after 40+ years

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Wed Aug 05, 2020 9:14 pm
by paologregorio
I just turned my TR25 amp upside down, and discovered the amp has an extension speaker jack, additional to the footswitch jack, which I knew about.

Does anyone know what ohm speaker is correct to connect to the amp?

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Wed Aug 05, 2020 11:44 pm
by scott_s
paologregorio wrote:I just turned my TR25 amp upside down, and discovered the amp has an extension speaker jack, additional to the footswitch jack, which I knew about.

Does anyone know what ohm speaker is correct to connect to the amp?


The schematic is a little blurry, but appears to say 16 ohms when I zoom way in: http://www.rickenbacker.com/pdfs/19341.pdf

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Sun Aug 16, 2020 4:38 pm
by paologregorio
scott_s wrote:
paologregorio wrote:I just turned my TR25 amp upside down, and discovered the amp has an extension speaker jack, additional to the footswitch jack, which I knew about.

Does anyone know what ohm speaker is correct to connect to the amp?


The schematic is a little blurry, but appears to say 16 ohms when I zoom way in: http://www.rickenbacker.com/pdfs/19341.pdf



Thanks, Scott! Much appreciated. Interesting; I could replae the speaker with another I have on hand.

I wonder if the extension cabinet speaker would be 16 ohms as well?

Does anyone here own a Rickenbacker extension speaker cabinet? I've only seen the older type speaker cabinets, with the blue-silvery-gray tolex at RIC, I think.

Rick amps are quirky; there's a footswitch jack for the reverb/tremolo, but no one I've asked who has the same or similar Rick amps has a foot switch. When I asked, John Hall confirmed a Fender two-button reverb/tremolo footswitch would work, so I use one of those ... the same footswitch also works on my Ampeg Reverbojet. :lol:

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Tue Jan 12, 2021 7:48 pm
by casinoman
I have one, too. Bought it back in the late nineties in Switzerland. Whenever I record a Rickenbacker 12-string, I use this amp. It seems that the solid state technology suits the 12-string sound a lot, just as the Roland JC-120 does...

Re: Rickenbacker TR 25 Guitar Amp.

PostPosted: Wed Jan 13, 2021 3:49 am
by espidog
paologregorio wrote:I wonder if the extension cabinet speaker would be 16 ohms as well?

Yes. Any extension speaker will be connected in parallel with the internal one. If the internal speaker is 16 ohm, using a 16 ohm extension will ensure equal power distribution to both speakers. With both speakers in use, the impedance seen by the amp's output stage will be 8 ohms, which will most likely be the lowest impedance the amp can be safely worked into.

Don't be tempted to connect an 8 ohm extension cab. This will result in two things:

1. Two thirds of the amp's power will go to the extension cab; one third to the internal speaker

2. The amp will be working into a load of 5.3 ohms, which may be lower than it's designed for. Working a solid state amp into too low a load can overstress the output stage and cause overheating/failure.