Anybody tried this? Does it have a proper transformer like the Alctron one?
https://www.thomann.de/de/the_tbone_psu_retro_tube_ii.htm
https://www.thomann.de/de/the_tbone_psu_retro_tube_ii.htm
Tbone mic PSU
- Thread starter TLRT
- Start date
Help Support GroupDIY Audio Forum:
RuudNL
Well-known member
I have one. It is not bad. I changed the zeners, because I needed 105 V for my microphone.
Also the 6.3V was as bit on the high side. (6.7 V)
It has a standard (E-I) transformer.
They use a 7806 regulator, but the output is 'lifted' 0.7 V by using a diode in the ground leg of the 7806.
I simply added a 1 ohm resistor in series with the filament voltage, this brought the voltage at the end of the cable to 6.3 V.
The power supply looks good, although it would have even been better if there wasn't 'TBone' printed on it...
Also the 6.3V was as bit on the high side. (6.7 V)
It has a standard (E-I) transformer.
They use a 7806 regulator, but the output is 'lifted' 0.7 V by using a diode in the ground leg of the 7806.
I simply added a 1 ohm resistor in series with the filament voltage, this brought the voltage at the end of the cable to 6.3 V.
The power supply looks good, although it would have even been better if there wasn't 'TBone' printed on it...
I've actually had my eye on those for a while now - can you get a multipattern tube mic for any cheaper?
Can't really say i "need" them yet, but as soon as i scrape together some disposable income, i'm planning on grabbing a pair.
Considering my mic collection, i couldn't give a toss about the brand - "it's how you use it" (especially post-modding )
Can't really say i "need" them yet, but as soon as i scrape together some disposable income, i'm planning on grabbing a pair.
Considering my mic collection, i couldn't give a toss about the brand - "it's how you use it"
(especially post-modding )RuudNL said:I have one. It is not bad. I changed the zeners, because I needed 105 V for my microphone.
Also the 6.3V was as bit on the high side. (6.7 V)
It has a standard (E-I) transformer.
They use a 7806 regulator, but the output is 'lifted' 0.7 V by using a diode in the ground leg of the 7806.
I simply added a 1 ohm resistor in series with the filament voltage, this brought the voltage at the end of the cable to 6.3 V.
The power supply looks good, although it would have even been better if there wasn't 'TBone' printed on it...
Thanks, I was curious if it has at least a good quality mains transfomer like the alctron - I have my own CNC'ed PSU house, but sometimes I need something cheap for a project,etc...
RuudNL
Well-known member
The transformer is completely silent in my power supply.
RuudNL said:
Yes it should not rattle under load and it should give proper voltages, that's enough for me
RuudNL
Well-known member
Oops! I wanted to order one more, but they are no longer available...
useme2305
Well-known member
where does one get a transformer like the one used in these cheap chinese regulated PSUs?
