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Laurie
Double Platinum Member
Canada
4854 Posts |
 Posted - 04/04/2008 : 04:29:02
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OK, so I picked up a GEB-7 years ago with the intent of using it with my bass. Never did. I have just dug it up again and I'm wondering if anyone knows what the component level differences are between the GEB-7 and the GE-7? Thinking I might convert it if it's just a few capacitors.
I have the schematic for the GE-7, but cant find one for the GEB-7 (or I wouldn't have to ask this question!).
Thanks, and regards,
Laurie.
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Edited by - Laurie on 04/04/2008 15:23:58 |
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ChristoMephisto
Platinum Member
Canada
1288 Posts |
Posted - 04/05/2008 : 00:02:55
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The GEB7 is identical to the GE7, the difference being the values in the �gyrator� circuits which are controlling the frequency for each band. For example, VR1 in the schems shows a frequency of 100hz. On the GEB7 it is 50hz. This is changed by changing the parts C10 and C13. For VR2 it would be C9 and C8, and so on for each frequency and slider. You'll need some tant caps also.
Is your a MIJ or MIT? the schems mostly online are for the MIJ.
But you get the idea how it works, and the layout.
heres a calculator for each band, look under 'electronic circuits-->geq calc'
http://www.geocities.jp/dgb_studio/index_e.htm
tons of g'tar wiring too
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pedals 4 pv
Platinum Member
Canada
1351 Posts |
Posted - 04/05/2008 : 01:48:57
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GEB-7 works fine for guitar as it is. |
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Laurie
Double Platinum Member
Canada
4854 Posts |
Posted - 04/05/2008 : 01:54:59
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Yeeeessss.... I have just tried it and it seems fine. Just suffering from the usual noise problems these things are prone to. Interesting, eh?
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ChristoMephisto
Platinum Member
Canada
1288 Posts |
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pedals 4 pv
Platinum Member
Canada
1351 Posts |
Posted - 04/05/2008 : 06:56:16
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quote:
Originally posted by lauries2
Yeeeessss.... I have just tried it and it seems fine. Just suffering from the usual noise problems these things are prone to. Interesting, eh?
I use mine before my NS-2, not in the loop of the NS-2. I often wonder why the list price is higher for the GE-7, it can't cost any more to make than the GEB-7 because it's just different values of the same components. Besides, there are more guitar players than bass players so sales volume pricing doesn't apply. |
Edited by - pedals 4 pv on 04/05/2008 07:18:30 |
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ChristoMephisto
Platinum Member
Canada
1288 Posts |
Posted - 04/05/2008 : 14:01:28
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Guessing it costs more because they need to get special stock for the GE7 since its the only type of pedal to have sliders. If it were knobs and pots, it might be cheaper. Oh and be huge with 8 knobs
Has anyone tried different values, like 100->125, or 400->350? |
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pedals 4 pv
Platinum Member
Canada
1351 Posts |
Posted - 04/05/2008 : 19:45:26
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quote:
Originally posted by ChristoMephisto
Guessing it costs more because they need to get special stock for the GE7 since its the only type of pedal to have sliders. If it were knobs and pots, it might be cheaper. Oh and be huge with 8 knobs
Has anyone tried different values, like 100->125, or 400->350?
GEB-7 has sliders too! |
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ChristoMephisto
Platinum Member
Canada
1288 Posts |
Posted - 04/05/2008 : 21:08:56
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You're right, thats just dumb
thought you meant GEs in general cost more |
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GEB-7 schematic ??
