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#1 2008-01-22 21:21:26

jacobarber
Member
Registered: 2008-01-22
Posts: 57

VT-22 issues (reverb, MV control)

I just obtained what seems to be a 68' VT-22.  It works great except for the reverb.  I opened the amp up and the reverb tank looks like its in great shape, although the lock is completely missing.  The pot makes a lot of scratchy noise when i turn it, and when i used a footswitch to turn it on & off, there was a lot of buzz in the 'on' position.  Care to postulate as to what could be causing my nonworking reverb?

Also, I am looking into adding a MV control to this amp.  I've looked at the MV pedal that fliptops sells and read the reviews.  Some people dig it, others say it doesn't do what its supposed to do.  I also checked out what's necessary to install a real MV control, and I got 2 totally different answers

Is there anyone who's had positive experience with the MV control pedal or other solutions for the non-factory MV user?  Also, does a new reverb lock come with a tank if you buy from fliptop?  Thanks much.

Last edited by jacobarber (2008-01-23 00:22:56)

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#2 2008-01-24 00:21:09

hangman
Banned
From: Seattle Washington
Registered: 2006-09-04
Posts: 1848

Re: VT-22 issues (reverb, MV control)

if you looked inside the tank and made sure the wires are connected to the jacks,  then I would suggest taking it to a tech.   

there are a number of things it could be,  best to have someone who knows what they're doing take a look.

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#3 2008-01-24 01:02:13

paully
Member
From: Northern New Jersey
Registered: 2007-11-02
Posts: 200

Re: VT-22 issues (reverb, MV control)

jacobarber wrote:

Also, does a new reverb lock come with a tank if you buy from fliptop?

>>>>>>>>>>>>>>>>>>
Nothing against Fliptop, but if needed you can get a better selection of tanks by going here http://accutronicsreverb.com/ordering.htm and checking with their selected retailers. I don't think Acutronics even offers the locking option anymore.

Best, Paul


WADAYAKNOW.. For the first time in my life, I'm wrong again!

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#4 2008-01-24 04:58:28

hangman
Banned
From: Seattle Washington
Registered: 2006-09-04
Posts: 1848

Re: VT-22 issues (reverb, MV control)

the locking mechanism was often removed because it rattled.    Its not too hard to get it to stop rattling without removing it... but I don't know how many times I've played shows and thought the reverb on my amp was broken for the first song, only to find out that I had forgotten to unlock the reverb.    or tried to record something only to hear the tank rattling in the back round.

my point:  you'll lose as much as you gain either way.

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#5 2008-01-24 19:13:09

hangman
Banned
From: Seattle Washington
Registered: 2006-09-04
Posts: 1848

Re: VT-22 issues (reverb, MV control)

in regards to the "real master volume control"  the only thing you need to do is go buy a THD hotplate.   instant master volume,  and it will sound better than any master volume that could be put in your amp, and requires no drilling or electronic modifications.

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#6 2008-01-24 19:52:27

jacobarber
Member
Registered: 2008-01-22
Posts: 57

Re: VT-22 issues (reverb, MV control)

i've heard that the THD Hotplate can barely compete with the volume capabilities of the VT-22.  Can it go as far as bringing the amp down to acceptable apartment levels?

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#7 2008-01-24 23:43:39

paully
Member
From: Northern New Jersey
Registered: 2007-11-02
Posts: 200

Re: VT-22 issues (reverb, MV control)

Depends on the neighbors. As a refence point, 3 dB of level reduction is roughly equal to a perceived volume drop of 1/2. This thing can attenuate to 12 dB or greater. Should work for apartment dwellers, just be aware that radical levels of attenuation will slightly alter the sound.

Every guitarist would benefit from owning one of these things. Go here http://cgi.ebay.com/ws/eBayISAPI.dll?Vi … 0208150943 and get in on the bidding. This is a great price, and this is about the best brand/unit of it's ilk.

Best, Paul

Last edited by paully (2008-01-24 23:54:20)


WADAYAKNOW.. For the first time in my life, I'm wrong again!

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#8 2008-01-25 00:38:13

hangman
Banned
From: Seattle Washington
Registered: 2006-09-04
Posts: 1848

Re: VT-22 issues (reverb, MV control)

I've never heard anything about the THD not being able to deal with the volume levels that the VT-22 can dish out.   

if you want something just for your apartment I don't think the VT-22 is the amp for you.    you might look into something sub 20watts

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#9 2008-01-25 01:08:59

jacobarber
Member
Registered: 2008-01-22
Posts: 57

Re: VT-22 issues (reverb, MV control)

haha, i absolutely did not get this amp for bedroom / apartment use.  I went into this deal knowing just what i was getting, and i'm very happy with the results. just wanted to know if there was a good way to tame the wild beast, is all

thanks for the info on the hotplate. i'll have to see how this fucker sounds with the volume up a bit more and my Little Big Muff pumping hot fuzz into it.

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#10 2008-01-25 01:51:33

hangman
Banned
From: Seattle Washington
Registered: 2006-09-04
Posts: 1848

Re: VT-22 issues (reverb, MV control)

heh,  well thats good you knew what you were getting into. 
with the hot plate you should be able to get it pretty quiet.

I'm sure you'll love it,  these are amazing amps.  no coincidence that there is a dedicated group of v-4 enthusiasts here.

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#11 2008-01-25 01:59:25

jacobarber
Member
Registered: 2008-01-22
Posts: 57

Re: VT-22 issues (reverb, MV control)

one question about the impedance for the Hotplate:

does it have to match what the amp itself is set to (8ohms) or does it match the individual speakers' resistences (16ohms)?  I'm going by what the manual on this site says for VT-22's with original 2x12 setup: set the amp to 8ohms for 2x16ohm speakers in parallel.  please correct me if I'm wrong, cause I don't wanna go blowing anything up

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#12 2008-01-25 02:22:19

hangman
Banned
From: Seattle Washington
Registered: 2006-09-04
Posts: 1848

Re: VT-22 issues (reverb, MV control)

you want to match to the Total resistance.   so the total load of the speakers is 8ohms. you want the 8ohm version.
you'll of course still want to set the impedance selector on your amp to 8ohms.

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#13 2008-01-25 04:50:59

DR FUNK
Member
From: Seattle, WA
Registered: 2007-12-28
Posts: 21

Re: VT-22 issues (reverb, MV control)

The THD Hotplate does 0, -4, -8, -12 dB attenuation discretely and from -16 to -infinity dB continuously.  So really it can handle any volume level.  I personally think mine shines more in the -8 and -12 settings, but I don't drive my amp as hard as some.  (Just a hint of breakup to complement my outboard effects).

It's an extremely useful tool for anyone who uses the same amp on stage and in the bedroom.  It really solves the problem of volume control in these old powerful amps.

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