Page 1 of 1

DR 106 output tap question

Posted: Thu Jan 04, 2018 1:03 am
by happyface
Hi. Mr Lazyboy here.

I've seen a couple of interesting looking 16 ohm speakers cabs I'd like to try with my DR 106.

I recall there is no 16 ohm tap on the 106.

Is there one hidden inside, like on the old !blasphemy! amps?

Thanks!

Re: DR 106 output tap question

Posted: Thu Jan 04, 2018 1:13 am
by happyface
My word. Those amps I drove hard in the late 60s from the Northwest USA are automatically changed to !blasphemy! ? :lol:

Re: DR 106 output tap question

Posted: Thu Jan 04, 2018 12:48 pm
by mhuss
Heh, Dr. HI-TONE has his prejudices. :wink:

AFAIK, the output amps and transformers were the same on all of the amps of a given wattage and time period, so I'd be surprised if the 106 OT did not have a 16 ohm tap. It would almost never be used in the original application, of course (who used one PA cabinet?)

Re: DR 106 output tap question

Posted: Thu Jan 04, 2018 8:26 pm
by happyface
Thanks Doc! I saw one schematic which hinted that was the case, but I do not trust my meager knowledge or judgment when it comes to that amp.

As to the other issue, I'd put an auto-change on that newish Italian amp brand pushed by GC. Something like ... well, never mind, given that this is a family-friendly forum! :wink:

Re: DR 106 output tap question

Posted: Sat Jan 06, 2018 5:28 pm
by OldSchoolDave
mhuss wrote: AFAIK, the output amps and transformers were the same on all of the amps of a given wattage and time period, so I'd be surprised if the 106 OT did not have a 16 ohm tap.
Anecdotally supporting that theory: The SA212 I once owned had its 16 ohm leads connected to the EXT speaker jack, the 8 ohm leads hardwired to the two internal speakers and the 4 ohm tap's ground attached to a chassis lug, with the positive lead disconnected.

Dave

Re: DR 106 output tap question

Posted: Mon Jan 29, 2018 6:19 pm
by Dr.HI-TONE
mhuss wrote:Heh, Dr. HI-TONE has his prejudices. :wink:

AFAIK, the output amps and transformers were the same on all of the amps of a given wattage and time period, so I'd be surprised if the 106 OT did not have a 16 ohm tap. It would almost never be used in the original application, of course (who used one PA cabinet?)

that was Old School Dave's handywork iirc.