NAD!!!!70s Fender amp advise

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Re: 70s Fender amp advise

Post by Reg18 »

AiRdAd wrote:Can you ask the person if you can take it to a tech before you buy it? Is that an option? It would take the risk out of it all for you
This would be the ideal situation but given it’s in Blenheim I’m
Unsure if I could track down a tech there.
It’s over a 4 hour drive back to CHCH to my preferred tech.
I think it’s more likely I’ll make a low offer and hope for the best on service costs not being over $500.

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Re: 70s Fender amp advise

Post by AiRdAd »

That's the safest thing to do eh - build in a buffer.
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Re: 70s Fender amp advise

Post by jeremyb »

I dunno, is this amp rare enough to warrant spending over half the purchase price on a repair? whats the resale gonna be like? genuine question, not trying to be a downer, but looking purely at the economics of it :)
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Re: 70s Fender amp advise

Post by Reg18 »

jeremyb wrote:I dunno, is this amp rare enough to warrant spending over half the purchase price on a repair? whats the resale gonna be like? genuine question, not trying to be a downer, but looking purely at the economics of it :)
Well yes it’s a very valid question, it’s never going to be as popular as a Deluxe Reverb but I think it’s probably just as good!
Given I’ve already had 2 people contact me to say they are interested in second option if I don’t buy it there is some interest out there for it.
I’m no expert on Silverface values but I’d say if it didn't owe me over $1500 once finished it would be worth while?

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Re: 70s Fender amp advise

Post by AiRdAd »

To be super safe - I'd try and get it down to the $1300 price range finished :-)
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Re: 70s Fender amp advise

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Re: 70s Fender amp advise

Post by Reg18 »

The seller decided to take it to a tech to get an assessment done before I view it this week which is probably for the best.
Hoping to talk to talk to the tech first hand to get the full run down.
In other news I may have an opportunity to buy back the “one amp I regretted selling” A 1988 Black Tolex Marshall JCM 2550 head!
I cant afford to get both........this presents an interesting dilemma!

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Re: 70s Fender amp advise

Post by Reg18 »

So if anyone’s interested I tried out the new Tonemaster Twin Reverb today (the digital one with Neo speakers)
It felt real under the fingers and the tone was great!
Still at $2399 I think you would have to be fairly serious about the light weight being really important to you but I can confidently say it sounded and felt really good! The Deluxe reverb version has just landed in NZ for around $1799

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Re: NAD!!!!70s Fender amp advise

Post by Reg18 »

So I am now the proud owner of an over heating 1974 (I think) Fender Pro Reverb!
And I had to buy his original Tom Sholtz Power Soak too so that will be for sale soon if anyone’s keen.
He took it to a technician to asses before I picked it up who assitained it was most likely needing a full recap and new power tubes. I’m hoping that’s all it is.
The preamp valves are mostly newer looking grove tubes or Fender branded tubes except for 2 probably original Brimer tubes.
There is no rectifier tube but some funny looking thing in its place, anyone know what it is? I thought it might be a SS rectifier replacement or something.
Pics below.
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Re: NAD!!!!70s Fender amp advise

Post by Reg18 »

More pics, what’s the rectifier replacement? Anyone recognise it?
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Re: NAD!!!!70s Fender amp advise

Post by RectifiedAmps »

I bet it’s a homemade silicon rectifier plug- like a Weber copper cap-sorta thing. If you want anything besides clean tones, you might want to put a rectifier valve back in. See how it sounds first maybe.

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Re: NAD!!!!70s Fender amp advise

Post by RectifiedAmps »

Also, where’s the heat coming from? If it’s the top of the cab, the transformers or the capacitor ‘tray’, then you have issues. Otherwise it might just be normal heat output from the 6L6s. They might run hotter if they’re on a solid state rectifier, which would boost the high voltage a bit.

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Re: NAD!!!!70s Fender amp advise

Post by Reg18 »

The amp has been sitting unused for 25 years and the tech did say some of capacitors were leaky and he recommended all new caps.
The heat seems to be coming off the power valves mainly and there is also a fair amount of hum! One of the 6L6s gets super hot and glows red!

Edit.the hum increases as the 6L6 glows hotter.
Last edited by Reg18 on Thu Dec 05, 2019 5:38 pm, edited 1 time in total.

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Re: NAD!!!!70s Fender amp advise

Post by Dharmajester »

Good score mate :clap: Have a look inside the cap tray and see how badly they're bulging ( Gotta be in need of a refresh given it's age )
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Re: NAD!!!!70s Fender amp advise

Post by Reg18 »

Dharmajester wrote:Good score mate :clap: Have a look inside the cap tray and see how badly they're bulging ( Gotta be in need of a refresh given it's age )
Which bits the cap tray?
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