Recent content by webghost

RESISTOR not transistor mod

my MK3 is still for sale. @Wazza you got mail

David said that the SE runs out when the tubes are gone. I´ve ordered mine some time ago without tubes (i still had some). Then he received new ones and produces more SEs. Last time he said that the golden Tube protectors are bad quality to the delivery was delayed. --> ask him what parts...

Little Dot MK IVse with TUNG-SOL 5687 and Mullard M8161 (sound great but glows not much ) selfmade stereo level indicator with ECC83 and EM83

yes, i think they are ok. 1W will be more than enough. In the MK IVse is also a very small (120R) cathode resistor.

yes, put out the 68R and mount a 120R - than you can only use 6H30 types

If anybody wants so sell his 6H30 tubes - make me an offer. (if shipping to Austria and paypal will be ok)

Quote: Originally Posted by Pricklely Peete ...and one pair of 62 ohm resistors ..... no drilling 52 Ohm - not 62! i drilled two holes so i can move the switches (1st pic)

Quote: Originally Posted by dgbiker1 What is the power rating for your resistors (Watts)? i don´t know - from the size 0,25 or 0,5 Watts there is no 52 Ohm resistor available, so i´ve used this two ones. the circuit works fine, nothing gets hot, even not the resistors.

i´ve done an other way. I dont know what happens if the switch breaks and no resistor is connectet to the cathode. i´ve soldered out one end of the 68 Ohm resistor and put an 30,1 and an 21,5 Ohm in series, this gives about 120 Ohm. With the switch i make a bridge over the two new resistors...

i´ve tried to make my bulldapters smaller - it was successfull! With the parts i own, its not possible to make it much smaller they work perfect! greets Stefan btw: i´m looking for a pair of 6H30P-DR

Quote: Originally Posted by Penchum Where did you hear about this? I checked before ever trying these and LD says they will work just fine, except the MKIVse can't use the 6H6N tubes. So far, I haven't had any negative reactions from the amp or tubes, when using the 6H30's. i´ve...

i´ve heared that we have to change the cathode resistor from 68 Ohm to 120 Ohm for the use of 6h30p. I´ve build in an switch, so i can select between 68 or 120ohm. With 120ohm the Amp runs less hot (and the tube improves lifetime) greets Stefan

i´ve an Little Dot MKIII for sale. look for ghost0678 at ebay. greets Stefan

yesterday i got my tung-sol 5687, they sound very clear an bright (i love that). here are the rest of the pictures: the "bulldapters" are made from an old sovtec tube a bit of an pipe and an tube socket. It works fine. I soldered them together with some old "wire wrap" wire - at...