Andy at Vintage Tube Services will fix you up. Best to talk to him, as he will recommend options to suit your particular system & preferences. Tel # is:
And the website(which may load slowly wit a dial-up modem):
http://www.vintagetubeservices.com/
616-454-3467
And the website(which may load slowly wit a dial-up modem):
http://www.vintagetubeservices.com/