Cryo 6CA7 EH- Any experience


Anybody out there try the Cryoset 6CA7EHs?
http://www.cryoset.com/catalog/product_info.php?products_id=82&osCsid=96kba50l4bhjihonlgpuhbaet1

Would be used in Doshi/Lectron JH-50 amp.
Currently using non-cryo 6CA7 EH.
128x128swampwalker