Help me decide which E88CC tubes i should buy

Thanks for the above info.    The only reason I've purchased tubes, from the Germany based, eBay seller mentioned: I was dealing with him,  years before eBay was a thing and very confident of his expertise/honesty.     It's been my iron-clad rule, never to buy anything on the Bay, from anyone with less than a 100% feedback rating.      Not even an inner tube, for my Grandson's dirt bike.        There are a select few tube purveyors, this side of The Pond, in which I place my confidence.       None, on eBay.      Happy listening!

You can try a 5670 with an adapter from tube Depot for $14 for your input tube. Another popular rectifier in Decware is a globe 80 with a 4 pin adapter. You can also roll 5z3 and 83v rectifier tubes.  

You can always try 8bq5 power tubes or EL83 tubes.

What would the advantage/benefit be of using EL83 or 8BQ5 instead of EL84?

Has anyone experience with the black plates RCA and GE grey ovale plate from 1960? And Sylvania black plates?

I am using Tungsram EL84 now, not sure if the RCA or GE would be an upgrade.

Seems the Tele E88CC's are ~~The Holy Grails~~~ as prices are $$$$$...I'm not so sure about E88CC's beating out ECC88's. 
I have my doubts.
I am rolling Siemens, Tele, Philips (= Amperex). and can hardly say which is superior in my cayin CD17 player, running a  pair on the unbalnaced out.
Maybe its not the ideal unit to makea  shootout.
I am very interested in these E288CC's I'm been buying lately. 
 
The list goes on, E188CC
PCC88
Ecc**
E88CC's, a  EU seller I've been buying from, maybe Bulgaria, says he perfers the E88CC's over all. 
again, I'm not so sure there is a  ~~significant~~ sonic dif in any of the above mentioned. 
I was surprised the E288"s ~~~failed~~ in shooting out all /every 6922 variety. 
Still , all in all, I'm hanging with the E288CC as it 's a  cool looking tube, and its a  ~~done deal~~..
Tele ECC88 just arri9ved today and again, did not hear any significant gain.
All sound ~~spectacular~~~.
I am not even going to attemp winning the Tele E88CC's on ebay,,although i am in the bid war,,I'm going to hold at $100,,and figure they'll fetch $160 winning bid. 
I am not going to chase the ~~Holy Grails~~ I think its all ~~snakeoil~~~.
I have a  pair of Tele's E288CC's, made by Siemens, NOS/NIB up on ebay, if anyone is interested,. also have Siemens 6DJ8/ECC88/pair/NOS/NIB +Philips Miniwatt PCC88/qaud/Test strong. + alot of other E200CC;s, amperex, Tele, Siemens, all NOS/most NIB. + I havea  pair of rare Dario Miniwatt E288's(but have to find them)), NOS.
As I say, all 6922's variations seem so close, its more inportant what caps in the unit.
I have new M SGO caps, which was a  huge gain. IOW a  new cap mod will mod the sonics far superior to any ~~Holy grail~~ Tele;'s. 
Just my 2 cents. 

I am not even going to attemp winning the Tele E88CC's on ebay,,although i am in the bid war,,I'm going to hold at $100,,and figure they'll fetch $160 winning bid.

I know a guy that has been selling tubes for 60 years he is on Ebay aswell, very trustworthy and honest, he has a pair of Telefunken E88CC for sale in NOS condition for 117$.

If you want i can send you the link.

E88CC's, a EU seller I've been buying from, maybe Bulgaria, says he perfers the E88CC's over all.

Can you link me his website?

I am rolling Siemens, Tele, Philips (= Amperex). and can hardly say which is superior in my cayin CD17 player, running a pair on the unbalnaced out.

Those are all mighty fine tubes, probably all equally good just different.

I have dutch Philips aswell and the they differ from the Siemens because the guitars in rock and metal are the loudest with the most emphasis. It's as if someone said during recording "hey bro lets crank those guitars up" can be fun for metal/rock and other music feautirng guitars but kinda dull for electronic.