Mu Gibbs pan has just "1122 6428" stamped on the outside and a big "C" inside. I take it that it was made in June 1964.
I experimented switching it with a Accutronics 4AB3C1B and there was no compatibility. I like the sound of the Gibbs, not too long a tail on it.
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SurfGuitar101 Forums » Gear »
Gibbs reverb pan just installed...
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Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan 
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Posted on Dec 22 2014 12:13 PM
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Joined: Jul 28, 2008 Posts: 413 
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Posted on Dec 22 2014 06:16 PM
eddiekatcher wrote:
In my experience, cheap tape recorders sound 'washy' because they have omnidirectional microphones that picks up sound from all over the room. Our ears are more directional so the recording is going to be more washy than what the audience hears. It's always good to record your performances, but if the recording is indistinct, are the reverb settings at fault or is it simply a bad recording? —If it ain't broke, fix it until it is. |
Joined: May 20, 2009 Posts: 525 Leipzig 
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Posted on Dec 23 2014 08:37 AM
So JOBeast, did I understand you correctly? The C version of the Gibbs didn't work in your tank? —http://www.reverbnation.com/bangmustang |
Joined: Jun 26, 2009 Posts: 99 Austria 
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Posted on Dec 23 2014 10:25 AM
The easiest way to make sure that the pan is compatible with your unit is to have the seller measure the input and output dc-resistance. The input should be around 1 Ohm and the output around 200 Ohms (+/-). —
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Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan
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Posted on Dec 23 2014 11:45 AM
Yes LaFleur, the Gibbs C's impedance must be incompatible with that of the Fender Twin. LaFleur wrote: — Last edited: Dec 23, 2014 11:46:30 |
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Joined: May 20, 2009 Posts: 525 Leipzig
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Posted on Dec 23 2014 12:26 PM
Yes I know about the resistance measurement, but nearly no one on ebay wants to measure it... —http://www.reverbnation.com/bangmustang Last edited: Dec 23, 2014 13:30:53 |
Joined: Jan 05, 2009 Posts: 262 Port Hueneme, CA 
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Posted on Dec 23 2014 12:44 PM
I suspect that very few people can measure the "impedance". Measuring the "resistance" while easy to do, is something else. |
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Joined: May 20, 2009 Posts: 525 Leipzig
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Posted on Dec 23 2014 01:32 PM
Yes it is, but they are simply to lazy... —http://www.reverbnation.com/bangmustang |
Joined: Jul 27, 2006 Posts: 1284 Berlinesia, Germanifornia
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Posted on Dec 23 2014 03:39 PM
Oh this will getting to complicated for me… Twang cheers! Ralf Kilauea |
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Joined: Jan 05, 2009 Posts: 262 Port Hueneme, CA
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Posted on Dec 23 2014 03:48 PM
First, these things aren't exact. If you are looking for a typical Fender pan for a tube circuit Reverb the input side will have a resistance of about 1 ohm (as measured with a MultiMeter/VOM) and and impedance of about 8 ohms. The output side's resistance will be about 40 ohms and it's impedance will be about 2.2kOhms. |
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Joined: Jun 26, 2009 Posts: 99 Austria
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Posted on Dec 23 2014 04:22 PM
dboomer wrote:
According to my sources the output's dc-resistance has to be around 200 Ohms:
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Joined: May 20, 2009 Posts: 525 Leipzig
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Posted on Dec 23 2014 05:21 PM
yes: "1 ohm (as measured with a MultiMeter/VOM) and and impedance of about 8 ohms. The output side's resistance will be about 200 ohms and it's impedance will be about 2.2kOhms." —http://www.reverbnation.com/bangmustang |
Joined: Mar 02, 2006 Posts: 11048 Berkeley, CA
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Posted on Dec 23 2014 08:08 PM
I've found more often than not people will measure. When contacting seller I ask if they have an multimeter and would they check the resistance by putting the leads across each of the 2 jacks. Makes it sound a lot easier than just asking what the impedance is. —Danny Snyder Playing keys and guitar with Combo Tezeta Formerly a guitarist in The TomorrowMen and Meshugga Beach Party Latest surf project - Now That's What I Call SURF |
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Joined: Nov 16, 2013 Posts: 4536 Wisconsin
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Posted on Dec 23 2014 09:23 PM
LaFleur wrote:
4 Type 4 pan Reference source for "pan code" Merry Christmas. Wes DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices. |
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Joined: May 20, 2009 Posts: 525 Leipzig
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Posted on Dec 24 2014 03:42 AM
Badger wrote:
I meant the C and F stamp inside the Gibbs pan, but thanks anyway... http://www.reverbnation.com/bangmustang |
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Joined: Nov 16, 2013 Posts: 4536 Wisconsin
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Posted on Dec 24 2014 03:52 AM
LaFleur wrote:
Wes DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices. |
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Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan
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Posted on Dec 24 2014 12:01 PM
My pan marked "C" is hung horizontally & upside down in the cabinet, secured by screws through the top panel of the Gibson RV3 unit. — |
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Joined: Nov 16, 2013 Posts: 4536 Wisconsin
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Posted on Dec 24 2014 01:04 PM
JObeast wrote:
When I got my RI Fender 2nd-hand, it had the "wrong" pan in it (which I noticed when putting a MOD pan in), although it was electrically same specs. I did not notice anything vast in difference because of how the connectors now were, or that it was hung as intended. Funny you mention that. I think Ed contributed something awhile back to the Wiki about there being some "optimum" orientation based on air gap to transducer or something. Then again, my ears are still hearing alot of muzzle blast so it's possible I'd never detect anything. Maybe the electrical specs and the TYPE of pan (springs & delay) are what we're really hearing. Don't know that one or another orientation contributes or detracts from life of the pan. (Ahh, the calm before the storm of little one's descending on house later today.) Wes DISCLAIMER: The above is opinion/suggestion only & should not be used for mission planning/navigation, tweaking of instruments, beverage selection, or wardrobe choices. |
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Joined: May 20, 2009 Posts: 525 Leipzig
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Posted on Dec 25 2014 01:22 PM
JObeast, can you measure the resistance over the Gibbs C pan? So we could make some kinda database for the Gibbs pans. —http://www.reverbnation.com/bangmustang |
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Joined: Jul 24, 2012 Posts: 2762 Finknabad, Squinkistan
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Posted on Dec 25 2014 04:02 PM
Sure thing. I'll post results when I get them. |
Ahh.
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