:You might want to click on "Resources" above and look at other model numbers listed under Webster Electrical Corp. Sometimes, manufacturers used updated model/chassis numbers on older equipment. Another common practice was to tweek old circuitry (adding a cap or resistor here and there) then repackaging the "new" circuit into a new chassis arrangement.

Otherwise, if you have access to Sams, here are the folders listed under the brand name Ekotape.

116-12 models 101-4, 101-5
152-5 models 109, 110, 111, 112
170-6 models 101-8, 101-9
189-8 models 114, 115, 116, 117
228-8 models 205, 206
301-4 model 212
347-5 models 250 thru 255, 260, 261
416-5 270 series, 280 series, plus (with production change bulletin 466-3) models 320, 320ST and 321
432-6 Model 290. Models 340 and 342 are similar.
450-7 Model 310 and 311 series.

:looked at mod.109-112 there are 2 6v6, 1 5y3,1 5879. 1 12ax7 tube one . mod. 230 has 1 6v6 1 5y3 1 5879 2 6av6 instead of 1 12ax7 and 16aq5 i gues inplace of one 6v6. 230 also has 2 speeds. my problem is radio phono imput does not work. mike imput works fine.

:looked at mod.109-112 there are 2 6v6, 1 5y3,1 5879. 1 12ax7 tube one . mod. 230 has 1 6v6 1 5y3 1 5879 2 6av6 instead of 1 12ax7 and 16aq5 i gues inplace of one 6v6. 230 also has 2 speeds. my problem is radio phono imput does not work. mike imput works fine.