Search found 87 matches

by 4000
Wed Aug 07, 2024 3:23 pm
Forum: Rickenbacker Amplifiers
Topic: TR120B hissing
Replies: 10
Views: 23438

Re: TR120B hissing

Anybody stil around here?

I have a TR120B here as well, and alike: it'd be great if it'd hiss less.

I'm assuming as well the preamp is in essence like the mentioned TR35B.

So that means that with the volume-dial at zero, all preamp-noise should be gone
(the volume-pot is at the end of the preamp ...
by 4000
Wed Jul 24, 2024 6:51 am
Forum: Rickenbacker Amplifiers
Topic: TR120B speaker help!
Replies: 18
Views: 27210

Re: TR120B speaker help!

Hi, Ah I see. Yes, I have the TR35B schematic, but the TR120B schematic isn't there.
It'll indeed be pretty alike, but the power-amp for the TR35B definitely doesn't use a 4-wire speaker connection (which the TR120B seems to use).
We'll see when I have the TR120B here, and when I'm able to lift the ...
by 4000
Tue Jul 23, 2024 6:49 pm
Forum: Rickenbacker Amplifiers
Topic: TR120B speaker help!
Replies: 18
Views: 27210

Re: TR120B speaker help!


Reviving this thread because the replacement speaker in the TR120 also blew. Well, it’s doing some weird fizzy stuff.


First of all, hope you found a suited new speaker.

Based on info around here (from John Hall), I thought to have understood the TR120B uses originally a speaker with ...
by 4000
Wed Jun 15, 2022 2:55 pm
Forum: Rickenbacker Amplifiers
Topic: Rickenbacker TR 25 Guitar Amp.
Replies: 20
Views: 46920

Re: Rickenbacker TR 25 Guitar Amp.

Hi,

Bounce Back...
Many people wondering about this (various internet-forums), and by looking at the schematic, many people concluded it must have been some marketing phrase.

The power supply looks fully conventional.

Perhaps the thing that every solid state guitar amplifier 'should' do ( use ...
by 4000
Thu Jul 01, 2021 8:17 pm
Forum: Rickenbacker Guitars: by John Simmons
Topic: If Rickenbacker Didn't Exist
Replies: 34
Views: 11222

Re: If Rickenbacker Didn't Exist

Alternative universe question.

If Rickenbacker guitars did not exist:

1) would The Beatles have been as big as they were


For grins, let's add this bit of trivia (which most readers of Rick-trivia-books will know already) and move the 'what-if' topic further upstream.

This article (in Dutch ...
by 4000
Thu Jul 01, 2021 8:01 pm
Forum: Rickenbacker Guitars: by John Simmons
Topic: 230 Hamburg and 250 El Dorado 'passive boost'
Replies: 13
Views: 5416

Re: 230 Hamburg and 250 El Dorado 'passive boost'

Thanks Greg, this the missing piece of the puzzle, thanks for sharing this info!
And all laws of nature are applicable again ;-)

Sure interested in having a look at the schematic some day, not in a hurry, glad already this info came around.
I'll PM you in a few months, thanks already.

And ...
by 4000
Sat Jun 26, 2021 8:45 am
Forum: Rickenbacker Guitars: by John Simmons
Topic: 230 Hamburg and 250 El Dorado 'passive boost'
Replies: 13
Views: 5416

Re: 230 Hamburg and 250 El Dorado 'passive boost'

I had a 260 once and I don't remember a boost.

Thanks for the info, it then agrees with the published schematics as well, but the book-remark becoming more & more mysterious ;-) (or incorrect ;-) )

FWIW, as it seems then, only the first/early versions of the 230, 250 had the 'passive boost ...
by 4000
Sun Jun 20, 2021 5:06 pm
Forum: Rickenbacker Guitars: by John Simmons
Topic: 230 Hamburg and 250 El Dorado 'passive boost'
Replies: 13
Views: 5416

Re: 230 Hamburg and 250 El Dorado 'passive boost'

Yes, I still have my modified 2030 bass, though that was the first body I built for it and it's sitting somewhere in the basement.]

Oops, I hadn't watched that 1st pic in full detail the first time, it'sssss a bass!! And as I understand it it's all 'original', but you made/modified/in-fact ...
by 4000
Sat Jun 19, 2021 5:32 pm
Forum: Rickenbacker Guitars: by John Simmons
Topic: 230 Hamburg and 250 El Dorado 'passive boost'
Replies: 13
Views: 5416

Re: 230 Hamburg and 250 El Dorado 'passive boost'

250 003.jpg I don't recall anything like that on my 250. It was pretty straightforward with tone and volume knobs and a 3-way pickup selector. Of all the Rickenbackers I've owned and sold off over the years, I probably miss that one the most. Some guitars just feel great in your hands, and that one ...
by 4000
Sat Jun 19, 2021 5:23 pm
Forum: Rickenbacker Guitars: by John Simmons
Topic: 230 Hamburg and 250 El Dorado 'passive boost'
Replies: 13
Views: 5416

Re: 230 Hamburg and 250 El Dorado 'passive boost'

Complete speculation here, but (regardless of whether it was actually put into production) "passive boost" might have been some kind of multi-tapped transformer affair, like the 3-position switch on my Epi Jack Casady bass: it changes the impedence seen by the amplifier's input stage. The result is ...
by 4000
Sat Jun 19, 2021 5:15 pm
Forum: Rickenbacker Guitars: by John Simmons
Topic: 230 Hamburg and 250 El Dorado 'passive boost'
Replies: 13
Views: 5416

Re: 230 Hamburg and 250 El Dorado 'passive boost'

jdogric12 wrote:I had a 260 once and I don't remember a boost.
Thanks for the info, it then agrees with the published schematics as well, but the book-remark becoming more & more mysterious ;-) (or incorrect ;-) )
by 4000
Thu Jun 17, 2021 9:06 am
Forum: Rickenbacker Guitars: by John Simmons
Topic: 230 Hamburg and 250 El Dorado 'passive boost'
Replies: 13
Views: 5416

230 Hamburg and 250 El Dorado 'passive boost'

Related to the 230 Hamburg and 250 El Dorado guitars, the Tony Bacon/Paul Day Rickenbacker-book mentions a 'passive boost' for these models.

But the available schematics on the Rickenbacker-site don't reflect this; just straightforward passive Vol & Tone controls.

While 'passive boost' sounds like ...
by 4000
Mon Jun 07, 2021 5:56 pm
Forum: Rickenbacker General: by Howard Bishop
Topic: “Who the F... is Roger Rossmeisl?”
Replies: 24
Views: 12825

Re: “Who the F... is Roger Rossmeisl?”

Could unfortunately indeed only be seen during a certain timeslot. I figure there will be more screenings of this documentary someday somewhere...

It was certainly worth while I'd say. Not beyond great (why was there a guy with a purple 360 without strings ?! 8) ), but I'm glad I watched.

Bruno ...
by 4000
Sat Jun 05, 2021 3:39 pm
Forum: Rickenbacker General: by Howard Bishop
Topic: “Who the F... is Roger Rossmeisl?”
Replies: 24
Views: 12825

Re: “Who the F... is Roger Rossmeisl?”

Today's the day! Will be having a look!


Curious already, in case people here have already watched it, ...

how's the balance between 'real informative stuff' + old footage,
and say celebrities just talking a bit about the brand and telling nothing new? :mrgreen:
by 4000
Wed May 19, 2021 8:18 am
Forum: Rickenbacker General: by Howard Bishop
Topic: “Who the F... is Roger Rossmeisl?”
Replies: 24
Views: 12825

Re: “Who the F... is Roger Rossmeisl?”

I’d like to see the film. Roger Rossmeisl created designs I can look at and play on for hours.

I'd like to see it as well!

In about 2 weeks there's an online opportunity (US$12):

Available June 5, 2021 6:01 AM GMT+2
https://watch.eventive.org/newjerseyinternationalfilmfestival2021/play ...

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