My friend gave me the task to search for the "best" components to use in the amp. we are going to have carbon resistors in the signal path and metal film in the power supply.
What are the good brands on Carbon resistors? Allen bradley, Kiwames, Mills and ofcourse the expensive Riken Ohms. but if the Riken ohm have the best sound i dont mind paying. (but i hope there is a cheaper place than angela for them .. )
Caps, what are the ones to look for here? mallorys as used by ken?
We are planing to go with the Heyboer trannies, or are there any other options? I would like the OT raw sounding.
The resistor brands and types will have no significant impact, so buy what ever you want. Use 1/2W or larger for all the resistors EXCEPT for those explicitly stated as higher wattage.
For coupling capacitors, you can use ANY brand or style of polyester dielectric caps with almost no difference in the tone. Mallory 150, Sprage 225 or PS, IC (Illinois Cap), Zoso caps, old mustard caps, etc....
Don't use polypropylene dielectric in a wreck. They sound too bright and brittle.
For electrolytics, you can use Sprague Atoms. PErsonally, I like to use can caps, so I use JJ cans.
If you want the best pots, get them from West Labs (sealed, military grade Clarostat pots).
seems a lot of people do. it was easier for me to use an easily suggested one than to try to figure it out myself
Yes, Moose's transformers ARE from Heyboer and are the real wreck transformers.
If moose happens to be out and you need a set, I also have them for my own use but I'm always willing to sell a set. Mine are the same as Moose's, from Heyboer, but I order mine with only the 300V HV tap on the PT and Only the 5.2k primary on the OT because I never use the 260VAC nor the 6.6k Primary. I also use M27 steel in the OT which sounds a bit smoother to me than M9.
seems a lot of people do. it was easier for me to use an easily suggested one than to try to figure it out myself
Yes, Moose's transformers ARE from Heyboer and are the real wreck transformers.
If moose happens to be out and you need a set, I also have them for my own use but I'm always willing to sell a set. Mine are the same as Moose's, from Heyboer, but I order mine with only the 300V HV tap on the PT and Only the 5.2k primary on the OT because I never use the 260VAC nor the 6.6k Primary. I also use M27 steel in the OT which sounds a bit smoother to me than M9.
What is the tonal difference between using the 260vac/6.6K primary and the 300v/5.2K?
seems a lot of people do. it was easier for me to use an easily suggested one than to try to figure it out myself
Yes, Moose's transformers ARE from Heyboer and are the real wreck transformers.
If moose happens to be out and you need a set, I also have them for my own use but I'm always willing to sell a set. Mine are the same as Moose's, from Heyboer, but I order mine with only the 300V HV tap on the PT and Only the 5.2k primary on the OT because I never use the 260VAC nor the 6.6k Primary. I also use M27 steel in the OT which sounds a bit smoother to me than M9.
What is the tonal difference between using the 260vac/6.6K primary and the 300v/5.2K?
Thanks,
Allen
The 300v winding is typically used in the Express which used EL34s. The 260v winding is used for Liverpools and Rockets that use a EL84 power section and can't handle the higher voltage produced by the 300v winding. As far as the primary of the OT some like the 6.6k better and some like the 5.2k better. You should try both and see which one YOU like the best. Personally I like the 5.2k but that is just me.
UR12 wrote:The 300v winding is typically used in the Express which used EL34s. The 260v winding is used for Liverpools and Rockets that use a EL84 power section and can't handle the higher voltage produced by the 300v winding. As far as the primary of the OT some like the 6.6k better and some like the 5.2k better. You should try both and see which one YOU like the best. Personally I like the 5.2k but that is just me.
I agree. But the difference between 5.2k and 6.6k is very subtle in tone. To me, no difference.
For an express, you wan 300V anyway, so either PT is fine for an express.
For a rocket, it depends on whether you 330 or 370V B+ on the EL84s. I like high voltage. Again the difference is somewhat subtle but much more noticeable than the OT impedance difference.
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