Jofipe
New member
sah5150":11aigoiw said:
blackba
Well-known member
charveldan":2is9oh0h said:Jofipe":2is9oh0h said:charveldan":2is9oh0h said:
Do it and get rid of those shitty ohms plugs too ...
This?http://store.acradiosupplyinc.com/bogentl600.aspx
No ... This : https://www.ebay.com/itm/IMPEDANCE-SELEC ... 23223bfa13
It's an easy fix for a good tech, they have to slightly widen the hole.
What's the benefit of the new impedance selector switch?
LP Freak
Well-known member
Safetyblackba":xdprqd0p said:charveldan":xdprqd0p said:Jofipe":xdprqd0p said:charveldan":xdprqd0p said:
Do it and get rid of those shitty ohms plugs too ...
This?
No ... This : https://www.ebay.com/itm/IMPEDANCE-SELEC ... 23223bfa13
It's an easy fix for a good tech, they have to slightly widen the hole.
What's the benefit of the new impedance selector switch?
Jofipe
New member
Ok, so I think I'm gonna jump into this, doing it myself. I wanna learn these things.. anything I should take notice of, or is it just a direct swap?
This is the one, and I need to get 6, right?
http://img0033.popscreencdn.com/127217427_marshall-50uf-x-50uf-dual-can-capacitor-by-ft-germany-.jpg
This is the one, and I need to get 6, right?
http://img0033.popscreencdn.com/127217427_marshall-50uf-x-50uf-dual-can-capacitor-by-ft-germany-.jpg
wheelman
Member
So an amp will loose it punch will it loose it's gain some too? In the preamp section? Maybe the mushier overall feel of the bad caps would make you think this. I may have an amp that's needs recapped. It lost it's punch, power and doesn't seem as gainy as is it used to be. Still sounds great but way different more like a looser vintage tone at low volumes.
By the way no bubbling or popping up of my caps they look great.
By the way no bubbling or popping up of my caps they look great.
MississippiMetal
New member
Yeah they look great. Cut one open.
blackba
Well-known member
When I turn on my silver jubilee recently, it crackles of about 5 seconds, then clears up. Is this a sign of my caps going bad or something else?
MrDan666
Active member
blackba":1lukib33 said:
That sounds tube related to me..
MrDan666
Active member
Jofipe":2eiq17da said:
Yup the 50uF+50uF @ 500vdc are good caps and perfect for your amp
6 of them is correct. Don't forget to drain the voltage off the caps before doing any work. Best way is to take a resistor, something like a 100k @ 5watt. Hook one leg of the resistor to the mains filter cap positive (+) terminal, and hook the other resistor leg to ground. Make sure you use some insulated crocodile clips for this, so you don't get zapped.
The resistor will slow the draining process down a little bit, so you don't get a big spark. Might take a couple of minutes for the voltage to drain from the caps to ground, and then you're good. Always double check with a multimeter to be safe.
steve_k
New member
MrDan666":3n4ck3gc said:Jofipe":3n4ck3gc said:
Yup the 50uF+50uF @ 500vdc are good caps and perfect for your amp
Don't forget to drain the voltage off the caps before doing any work. Best way is to take a resistor, something like a 100k @ 5watt. Hook one leg of the resistor to the mains filter cap positive (+) terminal, and hook the other resistor leg to ground. Make sure you use some insulated crocodile clips for this, so you don't get zapped.
The resistor will slow the draining process down a little bit, so you don't get a big spark. Might take a couple of minutes for the voltage to drain from the caps to ground, and then you're good. Always double check with a multimeter to be safe.
I figured you for a screw driver sort of guy...
Jofipe
New member
So, I changed the caps to F&T 50/50 500V today, and MAN did that make a difference! It opened allot and it sound allot sweeter and more transparent.
I'm just a bit puzzled by the cap to the top left with the white ring around. It doesn't have anything bridging the two + poles. Can that be right?
Thanks allot for all the info! This was my first cap change, and it was fun!
I'm just a bit puzzled by the cap to the top left with the white ring around. It doesn't have anything bridging the two + poles. Can that be right?
Thanks allot for all the info! This was my first cap change, and it was fun!
LP Freak
Well-known member
That looks like a Friedman. Dave only uses half of the cap on his mod.
Glad it worked out for you.
Glad it worked out for you.
MrDan666
Active member
steve_k":1ma8bv7m said:I figured you for a screw driver sort of guy...
Oh i have definitely done that a few times, years ago when i was first getting into this stuff... It's no fun when the screwdriver welds itself to the chassis 
J
joepete77
New member
If the amp was modded , wouldn't the tech who did the mod have noticed the old caps or gave the option of replacement?Jofipe":3pkdwpvv said:So, I changed the caps to F&T 50/50 500V today, and MAN did that make a difference! It opened allot and it sound allot sweeter and more transparent.
I'm just a bit puzzled by the cap to the top left with the white ring around. It doesn't have anything bridging the two + poles. Can that be right?
Thanks allot for all the info! This was my first cap change, and it was fun!
Jofipe
New member
Oh I guess so, but maybe the person who had it modded initially wanted to save a bit of cash... bad place to save tho.
It sound monstrous now!! Just like the Killer Kali does I'm actually thinking about changing to f&t's in that one also now
It sound monstrous now!! Just like the Killer Kali does
I'm actually thinking about changing to f&t's in that one also now
MrDan666
Active member
Jofipe":2nz6iug4 said:Oh I guess so, but maybe the person who had it modded initially wanted to save a bit of cash... bad place to save tho.
It sound monstrous now!! Just like the Killer Kali does
Sure, you can try the F&T's in the Killer Kali. They will sound a bit more classic/old school compared to the JJ filter caps that are in there now. It won't be as huge of a difference as it was with the Friedman though, since the JJ's are almost brand new.. whereas the caps in the Friedman were probably toast
Jofipe
New member
Cool thanks DanWanted to ask... Three of the caps are still the orig. ones in your amp, do those matter "less" than the ones you changed?
MrDan666
Active member
Jofipe":a19oegbe said:
Wanted to ask... Three of the caps are still the orig. ones in your amp, do those matter "less" than the ones you changed?
Those original caps are disconnected and not being used
I normally use just 3 filter caps total in the Killer Kali mods.
Jofipe
New member
Your mods are environmental. You should apply for a stamp!
Cheers
Cheers
EXPcustom
Well-known member
Did anyone mention the bugspray smell? When you smell it, the party's over. 