[sdiy] PSU problem

[Carlos Portela]

Don - The transformer only has 2 cables, not ground. the ground its
the dashed line.
Julien - the transformer its 16VAC but I measured 18.6VAC. Also tried
with 18VAC tranformer (measured around 21V)and got the same problem.
Barry - No heatsink

2014-05-28 21:35 GMT+02:00 Carlos Portela <carlosrochaportela at gmail.com>:
> Don - The transformer only has 2 cables, not ground.
> Julien - the transformer its 16VAC but I measured 18.6VAC. Also tried
> with 18VAC tranformer and got the same.
> Barry - No heatsink
>
> 2014-05-28 21:29 GMT+02:00 Barry Klein <Barry.L.Klein at wdc.com>:
>> Are the 78xx tabs contacting the ground/heatsink?  The tab of 7915 is NOT ground it is input.
>> I see that otherwise the two input raw DC caps grounds are not tied together.
>>
>> Barry
>>
>>
>> -----Original Message-----
>> From: synth-diy-bounces at dropmix.xs4all.nl [mailto:synth-diy-bounces at dropmix.xs4all.nl] On Behalf Of Carlos Portela
>> Sent: Wednesday, May 28, 2014 12:13 PM
>> To: Synth-Diy
>> Subject: [sdiy] PSU problem
>>
>> Hi all,
>>
>> Can someone help me with this layout?
>>
>> http://imageshack.com/a/img842/5091/ltqsj.jpg
>>
>> I get +11v and -13v (more or less)
>> There's probably something wrong but I cant figure out what.
>>
>> Thanks in advance
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