I asked Simon from DIY Hifi Supply the same question. Here is his answer:
Hi Peter,
No need to remove for version 2.
regards,
Simon
>
> Simon, the Tram 2 Manual V1.34 at page 28 details to remove D9, C1 & C2
> from the Universal Film Cap PSU. Is this required if using the
> Universal
> Film Capacitor PSU Version 2 in the Tram 2. Thanks
Hi Peter,
No need to remove for version 2.
regards,
Simon
>
> Simon, the Tram 2 Manual V1.34 at page 28 details to remove D9, C1 & C2
> from the Universal Film Cap PSU. Is this required if using the
> Universal
> Film Capacitor PSU Version 2 in the Tram 2. Thanks
Phil, also don't move the jumpers on J1 and J2. They are set for correct Bias.
I am having all sorts of trouble with my Tram2 FCUPS. Here is what I wrote to Simon to ask the DIY Hifi Supply Technician:
Simon, can you also the technician the following.
When I am doing the post build-up testing and adjustment on the Tram2, I was
able to obtain 2.7 V for the filament supply at step 6 page 24 of the Tram 2
V1.34 Manual. I have 2 10 watt 0.47 ohm resistors in parallel and in
series with the black 5.5 V input wire.
Next I when measured the voltage required at step 8 page 24, I was unable to
obtain -65V (+/-10V). On the Fluke 85 Digital Multimeter, I
obtained -110.7 V on the right Channel and -111.8 V on the left Channel.
During this test and referring to page 18 Step 3 picture detailing voltage
measurements.
I then inserted the NOS 5U4 rectifier tube and 6AS7 NOS tube into the Tram2
sockets per numbering on the top cover of the pre-amp. I measured 216
Vac-0-216 Vac on the input to the Universal Power Supply Version 2. This
would be because I have 240.5 Vac from the wall socket. On the output of
the universal power supply, I was reading 461 Vdc on the B+ to ABS ground
per requirement of page 25 paragraph 12. It indicates there should only be
250 V and not 461 Vdc. I also read -118 Vdc on the Bias . I should have
220 Vdc on the B= and -74 Vdc on the Bias. There are J1 and J2 jumpers on
the Version 2 Power Supply board. Do they affect the output voltage. I dare
not continue with paragraph 16 to measure 120 V +/-5V.
I am having all sorts of trouble with my Tram2 FCUPS. Here is what I wrote to Simon to ask the DIY Hifi Supply Technician:
Simon, can you also the technician the following.
When I am doing the post build-up testing and adjustment on the Tram2, I was
able to obtain 2.7 V for the filament supply at step 6 page 24 of the Tram 2
V1.34 Manual. I have 2 10 watt 0.47 ohm resistors in parallel and in
series with the black 5.5 V input wire.
Next I when measured the voltage required at step 8 page 24, I was unable to
obtain -65V (+/-10V). On the Fluke 85 Digital Multimeter, I
obtained -110.7 V on the right Channel and -111.8 V on the left Channel.
During this test and referring to page 18 Step 3 picture detailing voltage
measurements.
I then inserted the NOS 5U4 rectifier tube and 6AS7 NOS tube into the Tram2
sockets per numbering on the top cover of the pre-amp. I measured 216
Vac-0-216 Vac on the input to the Universal Power Supply Version 2. This
would be because I have 240.5 Vac from the wall socket. On the output of
the universal power supply, I was reading 461 Vdc on the B+ to ABS ground
per requirement of page 25 paragraph 12. It indicates there should only be
250 V and not 461 Vdc. I also read -118 Vdc on the Bias . I should have
220 Vdc on the B= and -74 Vdc on the Bias. There are J1 and J2 jumpers on
the Version 2 Power Supply board. Do they affect the output voltage. I dare
not continue with paragraph 16 to measure 120 V +/-5V.
Response from DIYHIFI Supply
I realise it takes a long time to change offices. The pre-amp is working fine, but I can not get the voltages per Tram2 manual. Maybe Thorsten Loesch can help. Below is the e-mail thread to Simon regarding my out of limit voltage readings.
Response from Simon:
We are moving office from 8th to 13th June 2012. We will reply you as soon as we can. If we reply late, please don't worry, we don't ignore you but just need a bit longer time to reply. If the matter is urgent, please put "urgent" in the subject so that we will give it the priority.
Our new office location:
2012Office
Simon, any updates on the red LED indication I am getting on the Active Bias
Supply Module. I have tried six RCA 45 tubes which were all checked
serviceable on an AVO Mk 4 tube tester and the Active Bias Supply Module
still showed a red LED on the DS4.
Peter
-----Original Message-----
From: tpashton@bigpond.com
Sent: Monday, May 28, 2012 8:56 PM
To: Simon
Subject: Re: [Feedback] Tram 2 question
Simon, thank you for your reply. The pre-amp is working fine with sound
from both channels. Nice and clear.
Looking at the V1.35 Tram2 manual at page 17, when the pre-amp is powered, I
am getting a bright red LED (DS4) on the right middle side of the Active
Bias Supply Module and a bright blue LED (DS3) on the left middle side of
the Active Bias Supply Module. See attached picture (IMG_5444.JPG) . I
am measuring 9 volts AC from the power transformer to power the module.
The both tubes measure 120 volts between ground and the DHT Anode. I
swapped the new Full Music 45 to see whether the DS4 LED indication would go
blue and the DS3 LED would go red. The DS4 LED stayed red and the DS3 stayed blue. There is continuity between the soldered connections and the
wires. There are no dry solder joints on the Active Bias Supply Module. I am still measuring -117 volts on the Bias supply from the FCUPS.
Is there something wrong with the Active Bias Supply Module. Please consult
your Technician for an answer and please e-mail me.
Thanks again.
Peter
I realise it takes a long time to change offices. The pre-amp is working fine, but I can not get the voltages per Tram2 manual. Maybe Thorsten Loesch can help. Below is the e-mail thread to Simon regarding my out of limit voltage readings.
Response from Simon:
We are moving office from 8th to 13th June 2012. We will reply you as soon as we can. If we reply late, please don't worry, we don't ignore you but just need a bit longer time to reply. If the matter is urgent, please put "urgent" in the subject so that we will give it the priority.
Our new office location:
2012Office
Simon, any updates on the red LED indication I am getting on the Active Bias
Supply Module. I have tried six RCA 45 tubes which were all checked
serviceable on an AVO Mk 4 tube tester and the Active Bias Supply Module
still showed a red LED on the DS4.
Peter
-----Original Message-----
From: tpashton@bigpond.com
Sent: Monday, May 28, 2012 8:56 PM
To: Simon
Subject: Re: [Feedback] Tram 2 question
Simon, thank you for your reply. The pre-amp is working fine with sound
from both channels. Nice and clear.
Looking at the V1.35 Tram2 manual at page 17, when the pre-amp is powered, I
am getting a bright red LED (DS4) on the right middle side of the Active
Bias Supply Module and a bright blue LED (DS3) on the left middle side of
the Active Bias Supply Module. See attached picture (IMG_5444.JPG) . I
am measuring 9 volts AC from the power transformer to power the module.
The both tubes measure 120 volts between ground and the DHT Anode. I
swapped the new Full Music 45 to see whether the DS4 LED indication would go
blue and the DS3 LED would go red. The DS4 LED stayed red and the DS3 stayed blue. There is continuity between the soldered connections and the
wires. There are no dry solder joints on the Active Bias Supply Module. I am still measuring -117 volts on the Bias supply from the FCUPS.
Is there something wrong with the Active Bias Supply Module. Please consult
your Technician for an answer and please e-mail me.
Thanks again.
Peter
Greg, I have the Version 2 FCUPS. -117 volts for the Bias supply from the FCUPS is ok. The HT voltage came down from 461 vdc to 250 vdc on it's own.
I wish Thorsten Loesch could give some advice, but I think he has long gone from this forum. Brian is not at DIYHIFI Supply in Hong Kong, as it is left up to Simon who I have met, who I do not think he is technically minded to sort out the problems of their components.
You could ask Lusas Cant from Blackart Audio, to look over the circuit diagram.
Peter
I wish Thorsten Loesch could give some advice, but I think he has long gone from this forum. Brian is not at DIYHIFI Supply in Hong Kong, as it is left up to Simon who I have met, who I do not think he is technically minded to sort out the problems of their components.
You could ask Lusas Cant from Blackart Audio, to look over the circuit diagram.
Peter
Hello
If the fcups can not be repaired..then there are other powersupply withs can be used
for the high volt supply ,,there is a Maida regulator
Neurochrome.com : : Audio : 21st Century Maida Regulator
for the bias negative there is a Tentlabs negative bias supply-
Tube bias control
i do not think it is easy to change to the new supply ,,but i think it can be done by a skilled person
best Bjarne
If the fcups can not be repaired..then there are other powersupply withs can be used
for the high volt supply ,,there is a Maida regulator
Neurochrome.com : : Audio : 21st Century Maida Regulator
for the bias negative there is a Tentlabs negative bias supply-
Tube bias control
i do not think it is easy to change to the new supply ,,but i think it can be done by a skilled person
best Bjarne
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