Vaata täisversiooni : Fenderi Toitetrafo
Probleem selline - juba pikka aega olen tahtnud kloonida 5A3 või 5B3 seeria Fender Deluxe'i. Originaalile vastavate mõõtudega südamik toitetrafole on olemas, ainsad andmed aga sekundaarpingete ja -voolude kohta leidsin selliselt skeemilt - http://www.blueguitar.org/new/schem/fender/5b3_lay.jpg. Võimendi enda skeem oleks selline (http://www.blueguitar.org/new/schem/fender/5b3_sch.jpg).
Nüüd tekkisgi väike hämming - skeemil on märgitud trafo sekundaariks 700V keskväljavõttega 80mA voolule. Sellises re˛iimis peaks minu teadmiste kohaselt juba lõpp ise tarbima max. ca. 90 mA voolu. Isegi tühijooks peaks jääma kusagil 70 mA kanti. Kas see 80 mA tähendab seda, et ka traat on arvestatud 80 mA jaoks või peaks ikkagi traat olema arvestatud 40mA, mis tunduks loogilisem, arvestades südamiku väikest akent. Või vastab legend 50-date Fenderi toitetrafode jõhkrast aladimensioneerimisest tõele ning ongi trafo konstrueerimisel kohutavalt kokku hoitud?
Ouch, see pinge! :o
700V CT, arvestades selle alaldiga ja mingil määral ka trahvo sek. mähise takistusega, peaks andma toitepingeks ca. 400V 80mA koormusega, 120mA juures kukub ca. 30-40V.
Pagan küll, 6V6 maks anoodivool on lubatud 315V. Lisame sinna vajaliku reservi neg. eelpinge jaoks, kaod väljundtrafos... Ei kidravõimu ehitajad on ikkagi hullud :P
Aga mitte sellest ma ei tahtnud rääkida.
Toitetrafo dimensioneerimise seisukohalt - harilikult kui sek. mähise kohta on öeldud 700V CT (ehk ka 350V-0-350V v.
<|begin_of_text|><|start_header_id|>system<|end_header_id|>

Cutting Knowledge Date: December 2023
Today Date: 26 Jul 2024

<|eot_id|><|start_header_id|>user<|end_header_id|>

Below is an extract from a web page. Evaluate whether the page has a high educational
value and could be useful in an educational setting for teaching from primary school to
grade school levels using the additive 5-point scoring system described below. Points are
accumulated based on the satisfaction of each criterion:
- Add 1 point if the extract provides some basic information relevant to educational top-
ics, even if it includes some irrelevant or non-academic content like advertisements and
promotional material.
- Add another point if the extract addresses certain elements pertinent to education but
does not align closely with educational standards. It might mix educational content with
non-educational material, offering a superficial overview of potentially useful topics, or
presenting information in a disorganized manner and incoherent writing style.
- Award a third point if the extract is appropriate for educational use and introduces key
concepts relevant to school curricula. It is coherent though it may not be comprehensive
or could include some extraneous information. It may resemble an introductory section of
a textbook or a basic tutorial that is suitable for learning but has notable limitations like
treating concepts that are too complex for grade school students.
- Grant a fourth point if the extract highly relevant and beneficial for educational purposes
for a level not higher than grade school, exhibiting a clear and consistent writing style. It
could be similar to a chapter from a textbook or a tutorial, offering substantial educational
content, including exercises and solutions, with minimal irrelevant information, and the
concepts aren’t too advanced for grade school students. The content is coherent, focused,
and valuable for structured learning.
- Bestow a fifth point if the extract is outstanding in its educational value, perfectly suited for
teaching either at primary school or grade school. It follows detailed reasoning, the writing
style is easy to follow and offers profound and thorough insights into the subject matter,
devoid of any non-educational or complex content.
The extract: Vaata täisversiooni : Fenderi Toitetrafo
Probleem selline - juba pikka aega olen tahtnud kloonida 5A3 või 5B3 seeria Fender Deluxe'i. Originaalile vastavate mõõtudega südamik toitetrafole on olemas, ainsad andmed aga sekundaarpingete ja -voolude kohta leidsin selliselt skeemilt - http://www.blueguitar.org/new/schem/fender/5b3_lay.jpg. Võimendi enda skeem oleks selline (http://www.blueguitar.org/new/schem/fender/5b3_sch.jpg).
Nüüd tekkisgi väike hämming - skeemil on märgitud trafo sekundaariks 700V keskväljavõttega 80mA voolule. Sellises re˛iimis peaks minu teadmiste kohaselt juba lõpp ise tarbima max. ca. 90 mA voolu. Isegi tühijooks peaks jääma kusagil 70 mA kanti. Kas see 80 mA tähendab seda, et ka traat on arvestatud 80 mA jaoks või peaks ikkagi traat olema arvestatud 40mA, mis tunduks loogilisem, arvestades südamiku väikest akent. Või vastab legend 50-date Fenderi toitetrafode jõhkrast aladimensioneerimisest tõele ning ongi trafo konstrueerimisel kohutavalt kokku hoitud?
Ouch, see pinge! :o
700V CT, arvestades selle alaldiga ja mingil määral ka trahvo sek. mähise takistusega, peaks andma toitepingeks ca. 400V 80mA koormusega, 120mA juures kukub ca. 30-40V.
Pagan küll, 6V6 maks anoodivool on lubatud 315V. Lisame sinna vajaliku reservi neg. eelpinge jaoks, kaod väljundtrafos... Ei kidravõimu ehitajad on ikkagi hullud :P
Aga mitte sellest ma ei tahtnud rääkida.
Toitetrafo dimensioneerimise seisukohalt - harilikult kui sek. mähise kohta on öeldud 700V CT (ehk ka 350V-0-350V v.
After examining the extract:
- Briefly justify your total score, up to 100 words.
- Conclude with the score using the format: "Educational score: <total points>"<|eot_id|>
<|start_header_id|>assistant<|end_header_id|>

The extract appears to be a technical discussion about designing a transformer for a Fender guitar amplifier, including voltage and current calculations. While it provides some basic information on electronics, it lacks coherence, clarity, and relevance to educational standards, particularly for primary or grade school levels. The content is too specialized and complex, making it unsuitable for structured learning.

Educational score: 1