by Ty_Bower » Tue Feb 16, 2010 2:59 pm
antiquekid3 wrote:Has anyone used Hammond "iron" with good results?
I used a pair of Hammond 1620 output transformers on a DIY ST-35. They were much cheaper than either original or reproduction Dynaco transformers. They sounded perfectly fine at normal listening levels, but observations on the oscilloscope suggested they are not capable of producing the same kinds of power levels as the Dynacos. Distortion is evident at relatively low power levels, particularly in the sub 50 Hz region.
I left a few notes about them here:
http://www.diytube.com/phpBB2/viewtopic.php?t=1680
"It's a different experience; the noise occlusion, crisp, clear sound, and defined powerful bass. Strong bass does not corrupt the higher frequencies, giving a very different overall feel of the sound, one that is, in my opinion, quite unique."