Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: dude on March 25, 2017, 10:37:18 am
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Can't seem to find a switch the size of a Carling on/off switch (need to use in an amp's input hole on face frame, I believe it's 3/8"), need a simple STSP on-on-on switch. I see some on Mouser but some are (on) on (on), don't know what the parenthesis mean...? And not sure what would be the right switch from Mouser.
What I want is center - both sides on, and the other two just each side on independently. Just three taps solder tabs. Meaning in the center both the outer tabs are connected. Not looking for a mini switch.
I f a DTDP would work, I don't seem to understand how to wire it. Rather get a STSP
thanks for any help,
al
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Are you looking for one of this ?
https://www.tube-town.net/ttstore/Switch/Toggle-Switch/Toggle-Switch-APEM-644-H-2-DP3T-ON-ON-ON::7379.html (https://www.tube-town.net/ttstore/Switch/Toggle-Switch/Toggle-Switch-APEM-644-H-2-DP3T-ON-ON-ON::7379.html)
Franco
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Not sure, I looked at the data and still not sure.
Here's a pic, three tabs, three positions, lower position connects the middle and lower tab, upper position connects the middle and upper tab, middle connects both.
To fit a 3/8" hole, not a mini switch. appreciate any help, I don't know what to look for at Mouser or another place, like to stay in US.
Thanks, al
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To fit a 3/8" hole, not a mini switch.
That's the hard part. Most toggle switches will require a 1/2" or 1/4" hole. Are you not willing to ream the 3/8" hole so the larger switch will fit? Or use a bushing so the smaller switch will fit?
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The switch I posted the link is 12.2mm (near 1/2") so not for you
http://www.tube-town.net/info/datenblaetter/apem-600H.pdf (http://www.tube-town.net/info/datenblaetter/apem-600H.pdf)
Seems that your problem is a broken lever .... are you able to find one other switch (not ON-ON-ON) that is of the same kind
and borrow the intact lever to be put on your switch ?
if you are looking for a small switch, I've ordered (and received) this from China
4 pieces for 7.59$
http://www.ebay.com/itm/4pcs-Chrome-DP3T-3-Way-Guitar-Toggle-Switch-ON-ON-ON-3-WAY-Control-DIY-Harness-/291645794299? (http://www.ebay.com/itm/4pcs-Chrome-DP3T-3-Way-Guitar-Toggle-Switch-ON-ON-ON-3-WAY-Control-DIY-Harness-/291645794299?)
Franco
p.s.: I forgot, you asked about, "( )= Momentary"
and here how to connect the DPDT ON ON ON for your purpose
(http://www.tdpri.com/attachments/switches2_diag_4-jpg.206966/)
EDIT: If yoy want you can use a 2 way 3 position rotary switch (if you find one)
(http://i.imgur.com/Aup9UMm.jpg)
Position 1 = A + B
Position 2 = A
Position 3 = B
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I'll mess with diagrams you posted and see if I can get what I want I know there'sa way to get a DTDP switch to do what I want and I have one, thanks. I tried to change the bat toggle but it's fixed, doesn't come out. Thanks, al
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Have you open the switch from the back to pull the lever ?
May be you must use a punch to remove the pivot of the lever
Franco
p.s.: I don't think a DPDT is usable for that purpose, it has 2 useful position ON-OFF-ON and you need 3, if it was possible, no reason for an ON-ON-ON switch
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Yeah, the bat has a pin and I can punch it out but I don't have another bat that has a pin to hold it in.
I guess I'll have to use a mini switch and bushing like Sluckey suggested.
If I go with a 1/4" mini switch, what would I look for Doug doesn't carry any on-on-on mini's.
Besides on-on-on what do I need?
Triple throw, single pole?
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I like the C&K 7211. Plenty on eBay at reasonable prices. They come in a variety of toggle types. Be sure to get the mini with a 1/4" bushing size. Easy to wire. Look on the bottom of page 2 of this pdf...
http://sluckeyamps.com/VAC15/Vox_AC15_mods.pdf (http://sluckeyamps.com/VAC15/Vox_AC15_mods.pdf)
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I like the C&K 7211. Plenty on eBay at reasonable prices. They come in a variety of toggle types. Be sure to get the mini with a 1/4" bushing size. Easy to wire. Look on the bottom of page 2 of this pdf...
http://sluckeyamps.com/VAC15/Vox_AC15_mods.pdf (http://sluckeyamps.com/VAC15/Vox_AC15_mods.pdf)
Ebay doesn't have any 7211 switches now but I'll dig further in their sellers stores, Mouser has the C&K 7211, it's about $12.50 there. BTW, some cool mods on that link, thanks.
al
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Ebay doesn't have any 7211 switches now
Yes they do. I looked just before I posted. Search for c&k 7211.
I believe digikey has the best price if you don't want to do eBay. I got all mine from eBay.
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http://www.ebay.com/itm/On-On-On-Mini-toggle-switch-High-quality-Made-by-C-K-Great-price/252242821381?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D41809%26meid%3Db94fdf2a30ae4ec188c6c2f77666e71a%26pid%3D100005%26rk%3D1%26rkt%3D3%26sd%3D302258381107#shpCntId (http://www.ebay.com/itm/On-On-On-Mini-toggle-switch-High-quality-Made-by-C-K-Great-price/252242821381?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D2%26asc%3D41809%26meid%3Db94fdf2a30ae4ec188c6c2f77666e71a%26pid%3D100005%26rk%3D1%26rkt%3D3%26sd%3D302258381107#shpCntId)
(http://i.ebayimg.com/images/g/GiwAAOSwPcVVnpts/s-l1600.jpg)
Franco
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Thanks, I bought one on ebay. :smiley:
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That is fine
my 2c, orther the original 7211 and then order also this (4 pieces at 7.59$) as spare parts
http://www.ebay.com/itm/4pcs-Chrome-DP3T-3-Way-Guitar-Toggle-Switch-ON-ON-ON-3-WAY-Control-DIY-Harness-/291645794299? (http://www.ebay.com/itm/4pcs-Chrome-DP3T-3-Way-Guitar-Toggle-Switch-ON-ON-ON-3-WAY-Control-DIY-Harness-/291645794299?)
you'll wait for it but the price is good and may be a good thing to have a spare part
Franco