mk_
Responses from mk_
| Elrog 300B vs Takatsuki 300B tubes Hi Charles (and other Frankenstein owner),May it be that the filaments of the Elrogs are very bright after switching on the amp for 2 or 3 seconds and then the brightnes is decreasing within the next about 5 to 10 seconds? | |
| Elrog 300B vs Takatsuki 300B tubes Hi Dracule1>Let's hope Elrog makes a version that can handle AC filament supply.ER300B can handle AC filament supply...the problem is the residual hum...depending on the speaker sensitivity. Thats why we recommend DC heating.The problem is the ... | |
| Elrog 300B vs Takatsuki 300B tubes Hello Bhchung,Please excuse the delay in processing the warranty replacement!It's summer and some of our employees are or were on vacation ... And Gary (Trueaudiophile) is a special case too.So please, Brownsfan and Bhchung, send me a PM including... | |
| Elrog 300B vs Takatsuki 300B tubes Hi Rfprice,No, we do not offer unlimited warranty!Our warranty covers 2 years on materials and manufacturing and a half year for the emission.It is a matter of grace for a new product.It's very annoying if a tube fails, but it can happen. It is co... | |
| Elrog 300B vs Takatsuki 300B tubes Hello,Yes, there are some challenges on the ER300B...This tube is really new. The first series where build in October 2014. This are the first (300B like)tubes using thoriated tungsten as cathode/filament. To fit the 1.2A/5V filament specification... | |
| Elrog 300B vs Takatsuki 300B tubes Hello,Thanks to snopro for his efforts on this topic...I received the results a day earlier ;-)By my oppinion a variac is not needed. As can be seen all the measured tubes are having a little bit different operating conditions. All they are 300B f... | |
| Elrog 300B vs Takatsuki 300B tubes Hi Fla,I have read the article in 6moons and the description on the manufacturer's site. Very nice amp with a lot of effort in details (huge capacitors in HV supply, dedicated heater supplies for each output tube, smart solution for changing the g... | |
| Elrog 300B vs Takatsuki 300B tubes Hi Robert (Rwanda),I could not find schematics of the Cary 300 SEI...But the description says 15W(!!!) watt per chanel (out of ONE 300B!).May be, they use class A2 conditions (driving the tubes to positive grid voltage) or they use the absolute ma... | |
| Elrog 300B vs Takatsuki 300B tubes Hi Rob,You can use ER300B in the AN Kit-1 without problems...Because it's a kit I think You should have minimum skills at soldering and assambling. Thats why i suggest to add an additional resistor of 100Ohms(min 2W) between the paralled 1.5k Kath... | |
| Elrog 300B vs Takatsuki 300B tubes Hi Jet,schematics:http://www.drtube.com/schematics/an/quest.gifAnd I know Andy Grove (AudioNote)a little bit...a smart engineer.Matthias | |
| Elrog 300B vs Takatsuki 300B tubes Randy,AudioNote Quest Silver monos + ER300B = Dreamteam(Try 8Ohm speakers at the 4Ohm tap...)Regards, Matthias | |
| Elrog 300B vs Takatsuki 300B tubes Hi Charles,Why not work together with Israel? I am an open mind ;-) And I am lerning every day. Think You will have Elrog tubes working well with Franks without any changes in the amp. In the moment I'm collecting facts, numbers and values...then ... | |
| Elrog 300B vs Takatsuki 300B tubes Hi Al,It's hard for me to response (quick), because my contributions must be verifyed by an admin ;-)ok...try this link for the datasheet:http://www.mif.pg.gda.pl/homepages/frank/sheets/084/3/300B.pdfAnd yes, the ER300B can handle more than 800V o... | |
| Elrog 300B vs Takatsuki 300B tubes Hi,May be, this reverse engineered circuit helps:http://s89.photobucket.com/user/jeffreybehr/media/Coincident%20Frankenstein%20II%20monoamps/2014Mar20_Philsschematic2_1500w_zps98932676.jpg.htmlI have simulated and measured with different tubes (WE... | |
| Elrog 300B vs Takatsuki 300B tubes Hi Charles,You are absolutely right...No problems for EML XLS tubes.They are designed for 55W anode dissipation, not for 36(40)W only. For this tubes the "Frank" is easy. ;-)You can read something about that here:http://www.emissionlabs.com/datash... |