Use Mains Tranny for Output Trany - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

geofy · 28th Mar 2009, 1:23 pm

A 15 Ohm speaker will work on an 8 Ohm output, with slight reduction in volume, the DC resistance is only at one point, when driven the speaker can exhibit a few hundred Ohms Impendance depending on frequency.

Geof

rharness · 28th Mar 2009, 9:27 pm

Hi Geof, yes I realize that, but it's not the only reason. I'm just trying to do a bit of recycling, and make an amp up from old parts, on the cheap, as I'm only a beginner, so the price is a lot more than I want to pay. As well as that, I've got a few other speakers of different ohms I'd like to be able to experiment with to get different sounds.

Robert

julie_m · 30th Mar 2009, 8:52 am

15 ohms is close enough to 16 ohms not to make much difference in practice.

28th Mar 2009, 1:23 pm	#21
geofy Retired Dormant Member Join Date: Jun 2006 Posts: 1,798	Re: Use Mains Tranny for Output Trany A 15 Ohm speaker will work on an 8 Ohm output, with slight reduction in volume, the DC resistance is only at one point, when driven the speaker can exhibit a few hundred Ohms Impendance depending on frequency. Geof

28th Mar 2009, 9:27 pm	#22
rharness Tetrode Join Date: Oct 2008 Location: Boston, Lincolnshire, UK. Posts: 54	Re: Use Mains Tranny for Output Trany Hi Geof, yes I realize that, but it's not the only reason. I'm just trying to do a bit of recycling, and make an amp up from old parts, on the cheap, as I'm only a beginner, so the price is a lot more than I want to pay. As well as that, I've got a few other speakers of different ohms I'd like to be able to experiment with to get different sounds. Robert

30th Mar 2009, 8:52 am	#23
julie_m Dekatron Join Date: May 2008 Location: Derby, UK. Posts: 7,735	Re: Use Mains Tranny for Output Trany 15 ohms is close enough to 16 ohms not to make much difference in practice. __________________ If I have seen further than others, it is because I was standing on a pile of failed experiments.