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Need advice! Existential crisis in progress! Kill one bass to save another?

@SRGilbert ..... if the cause of the distortion wasn't the battery, the most likely problem is a cold solder joint on a pot or the switch. The first picture shows their locations. The pots should be cleaned with a good spray cleaner. The battery only lasts 80-100 hours. Needs to be changed at 8.3 VDC. Personally, I'd have the original pre fixed. As stated it's pretty simple and replacement parts are readily available with the exception of the pots and there are workarounds for those. If you need a schematic or PCB layout for a tech send me a PM.

I too am reluctant to strip parts from a working, playable bass no matter how little the value. And who knows, the next big thing may be bass players that use active basses with trems??? :) $$$$

Dyna Bass Pre-Pot Solder Joints.jpg
Dyna Bass Pre wiring-text.jpg
 
First, hello all! I've been a reader on here for a while, but I can't remember if I've posted before. I hope this is a good place to ask this, but if it's not, a moderator is free to move it or ask me to move it. I'm honestly not much of a player any more, but I'm 47 and started when I was 16 and still enjoy picking up the basses once in a while.

Short version:

Is it wrong to disassemble and part out a perfectly good (and somewhat vintage) bass to restore another one that has sentimental value to you?

Long version:

Anyway, here's my situation. My first "real" bass was a candy apple red Peavey Dyna-Bass 5-string with black hardware. I LOVED that bass back when I was 17 (1988) or so, bought it brand new and actually had to order it since my local shop in my small town would have been crazy to stock one. I played it a lot, lots of bar gigs, weddings, stuff like that. Eventually (like 25+ years ago) , the active pre-amp went bad. When switched on, it would distort (fart) like crazy. I should have taken it in and had it repaired at the time, but I was super poor. So, to get by, I just removed the whole board, soldered the bridge pickup to a volume pot, and played like that for a while. The band I was in broke up shortly there after and I kinda retired out of it at the old age of 25. The bass was put in its case and forgotten about for many years.

A year or so ago, I saw a listing for a 4-string Dyna-bass of the same vintage pretty cheap on Craigslist. I was going to buy it with the intention of using it for parts to restore my 5-string (I also needed the knobs.) Turns out the one I bought also has a Kahler Bass Trem on it, which is pretty cool. I remember being a kid in the 80's and looking at the pictures in Peavey Monitor magazine and thinking it would be amazing. The bass is very very used, but still solid, everything works fine, it does need a good setup though.

So, here's my dilemma. I have begun to have second thoughts about gutting this bass. There's literally nothing wrong with it other than cosmetics. It feels wrong somehow, like killing someone for their organs. I definitely don't need it though, cool as it is.

The thing is, I know these basses aren't worth a lot of money, I figure in the condition it's in $200-300 TOPS, and that's probably being optimistic. However, the PARTS of the bass would easily be worth more than than. Used trems can go for nearly $300 alone. Completely disassembled, I'm certain the parts would be worth over $500, and that's after keeping the pre-amp and knobs. But I having difficultly getting past the fact that I'd be ruining a perfectly good instrument that someone else could play.

If I could just order the original replacement parts, I would do that and just sell this bass to make up the money. I love my old 5-string, but I'm not willing to go into a lot of money to fix it since I won't play it much. When I do play, I usually pick up my US Fender Jazz bass (that was a life long dream to own, I do love being an adult.) The Peavey pre-amp looks fairly simply (I still have it), maybe a guitar tech could just repair it? My solder skills are pretty weak, and my diagnostic skills even weaker, but I do have access to good shops, including Elderly Instruments in Lansing, in my area. I would prefer NOT to replace the pre-amp with something more modern, my goal is to make it all original, even though I know the original really wasn't that great.

If you've read all this, thanks! If you have advice, thanks for that too!

SO, am I a weirdo or what? :)

Scott
I don't think you are making a sacrifice, you can always put the parts back.
 
I'd chime in with the others saying that you'd be better off just to buy a new preamp for the bass you have. I doubt there was anything particularly special about the dyna bass preamp, and frankly a lot of the old active preamps weren't that great. There are any number of options out there, but both audere and nordstrand have pre-wired module preamps that are dead simple to install (and are fantastic preamps as well). But, I suppose there is nothing wrong with cannibalizing another bass. Ideally, find a way to get them both working
 
Have you called Peavey? They might have the part you need, or be able to repair your old one. They recently supplied qqme with a set of pickups to replace some that had gone bad. The pickups were about 20 years old New Old Stock.
^This^
I’ve done it a few times and more times than not, they had what i needed.
As for swapping out the DOA pre for one more modern, i’m not sure you want to go there. I recently spent a few years looking for a preamp for a standard jazz and after several different preamps that all failed to live up to the sound i get from my old jazz plus, i’m back to an almost stock spec control plate with a set of humbuckers.
As the former owner of a Dyna five i can tell you I believe none of the preamps i tried would have been a replacement for the pre in my Dyna five; a substitute to be sure, but your bass wouldn’t sound the same. Since i didn’t try every preamp out there it’s possible someone has found a preamp that would give you the sound you are looking for, but between the offer of a chance to buy a working used one or repairing the old one, replacing it with something else would be option three of those three choices.
Last, we all have to do what we feel is right but if there is a hades for those who cannibalize old stuff to restore other old stuff, i’m going. My reasons are not even sentamental, something i have little of for inanimate objects.
 
Last edited:
First, hello all! I've been a reader on here for a while, but I can't remember if I've posted before. I hope this is a good place to ask this, but if it's not, a moderator is free to move it or ask me to move it. I'm honestly not much of a player any more, but I'm 47 and started when I was 16 and still enjoy picking up the basses once in a while.

Short version:

Is it wrong to disassemble and part out a perfectly good (and somewhat vintage) bass to restore another one that has sentimental value to you?

Long version:

Anyway, here's my situation. My first "real" bass was a candy apple red Peavey Dyna-Bass 5-string with black hardware. I LOVED that bass back when I was 17 (1988) or so, bought it brand new and actually had to order it since my local shop in my small town would have been crazy to stock one. I played it a lot, lots of bar gigs, weddings, stuff like that. Eventually (like 25+ years ago) , the active pre-amp went bad. When switched on, it would distort (fart) like crazy. I should have taken it in and had it repaired at the time, but I was super poor. So, to get by, I just removed the whole board, soldered the bridge pickup to a volume pot, and played like that for a while. The band I was in broke up shortly there after and I kinda retired out of it at the old age of 25. The bass was put in its case and forgotten about for many years.

A year or so ago, I saw a listing for a 4-string Dyna-bass of the same vintage pretty cheap on Craigslist. I was going to buy it with the intention of using it for parts to restore my 5-string (I also needed the knobs.) Turns out the one I bought also has a Kahler Bass Trem on it, which is pretty cool. I remember being a kid in the 80's and looking at the pictures in Peavey Monitor magazine and thinking it would be amazing. The bass is very very used, but still solid, everything works fine, it does need a good setup though.

So, here's my dilemma. I have begun to have second thoughts about gutting this bass. There's literally nothing wrong with it other than cosmetics. It feels wrong somehow, like killing someone for their organs. I definitely don't need it though, cool as it is.

The thing is, I know these basses aren't worth a lot of money, I figure in the condition it's in $200-300 TOPS, and that's probably being optimistic. However, the PARTS of the bass would easily be worth more than than. Used trems can go for nearly $300 alone. Completely disassembled, I'm certain the parts would be worth over $500, and that's after keeping the pre-amp and knobs. But I having difficultly getting past the fact that I'd be ruining a perfectly good instrument that someone else could play.

If I could just order the original replacement parts, I would do that and just sell this bass to make up the money. I love my old 5-string, but I'm not willing to go into a lot of money to fix it since I won't play it much. When I do play, I usually pick up my US Fender Jazz bass (that was a life long dream to own, I do love being an adult.) The Peavey pre-amp looks fairly simply (I still have it), maybe a guitar tech could just repair it? My solder skills are pretty weak, and my diagnostic skills even weaker, but I do have access to good shops, including Elderly Instruments in Lansing, in my area. I would prefer NOT to replace the pre-amp with something more modern, my goal is to make it all original, even though I know the original really wasn't that great.

If you've read all this, thanks! If you have advice, thanks for that too!

SO, am I a weirdo or what? :)

Scott

I say replace the preamp with an Audere preamp ...

Audere Preamps
 
Before it was a bass, it was a part of a tree and some rocks for the most part. One day it will be worm casings. Enjoy it how you want.

If you have a sentimental bass, I would say get a better than original electronics. Part out the other and it looks like you could afford a decent set of new electronics.