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DIY transistorized voltage regulator #427062
03/30/12 8:07 pm
03/30/12 8:07 pm
Joined: Nov 2010
Posts: 61
rainny california, usa
M
micheal Offline OP
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micheal  Offline OP
BritBike Forum member
M
Joined: Nov 2010
Posts: 61
rainny california, usa
i took a quick look around and couldnt find an answer. is there a DIY transistorized voltage regulator plan/parts list for the early twin, '45 to '62. i have several regulators and would like to convert one from electro-mechanical to transistor. thanks micheal

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Re: DIY transistorized voltage regulator [Re: micheal] #427208
03/31/12 6:51 pm
03/31/12 6:51 pm
Joined: Jan 2005
Posts: 1,659
East Bethany New York
Dick Harris Offline
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Dick Harris  Offline
BritBike Forum member
Joined: Jan 2005
Posts: 1,659
East Bethany New York
Yes,Podtronic's makes one. I have a couple of them in service. I think you will find an add on this net. Dick

Re: DIY transistorized voltage regulator [Re: Dick Harris] #427347
04/01/12 4:27 pm
04/01/12 4:27 pm
Joined: Nov 2010
Posts: 61
rainny california, usa
M
micheal Offline OP
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micheal  Offline OP
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M
Joined: Nov 2010
Posts: 61
rainny california, usa
Mr Harris; sir: thank you very much for the information. micheal

Re: DIY transistorized voltage regulator [Re: micheal] #427623
04/03/12 6:17 am
04/03/12 6:17 am
Joined: Oct 2008
Posts: 4,933
Gnashville
DavidP Offline

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DavidP  Offline

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Joined: Oct 2008
Posts: 4,933
Gnashville
Take one of these,
http://www.radioshack.com/product/index.jsp?productId=12681237

One of these:
http://www.radioshack.com/product/index.jsp?productId=12737864

Mount them to one of these:
http://www.radioshack.com/product/index.jsp?productId=2102857

Presto! DYI rectifier/regulator.
Or just buy one already made, but where's the fun in that?


Stepping on others doesn't make you stand tall.

71 A65L "Zelda"
92 BMW K100rs "Gustav"
72 T120V cafe project "Mr. Jim"
Re: DIY transistorized voltage regulator [Re: DavidP] #427654
04/03/12 1:02 pm
04/03/12 1:02 pm
Joined: Nov 2005
Posts: 737
Reading UK
twinspin Offline
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twinspin  Offline
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Joined: Nov 2005
Posts: 737
Reading UK
Isn't this required for the dynamo version? In which case the rectifier and zener are no use.

Podtronics dynamo regulator is on the link below. If it doesn't work, paste it into your browser.

http://podtronics.net/DC_regulator.htm

Last edited by twinspin; 04/03/12 1:08 pm.

1971 T100R
1970 T120
Re: DIY transistorized voltage regulator [Re: micheal] #427712
04/03/12 5:49 pm
04/03/12 5:49 pm
Joined: Jan 2005
Posts: 1,659
East Bethany New York
Dick Harris Offline
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Dick Harris  Offline
BritBike Forum member
Joined: Jan 2005
Posts: 1,659
East Bethany New York
Yes,the rectification process is to be used for the AC (alternator)systems. The DC (dynamo) needs to have a cutout to keep the battery voltage from backfeeding into the dynamo when the dynamo is at rest,and a regulator,to keep the voltage feeding the curcuitry and into the battery at the proper level. Dick


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